diff --git a/apps/advanced/README.md b/apps/advanced/README.md
index a2bcdd4..c443c90 100644
--- a/apps/advanced/README.md
+++ b/apps/advanced/README.md
@@ -67,32 +67,32 @@ If you do not have [Composer](http://getcomposer.org/), you may download it from
 curl -s http://getcomposer.org/installer | php
 ~~~
 
-You can then install the Bootstrap Application using the following command:
+You can then install the application using the following command:
 
 ~~~
 php composer.phar create-project --stability=dev yiisoft/yii2-app-advanced yii-advanced
 ~~~
 
-Now you should be able to access:
-
-- the frontend using the URL `http://localhost/yii-advanced/frontend/www/`
-- the backstage using the URL `http://localhost/yii-advanced/backstage/www/`
-
-assuming `yii-advanced` is directly under the document root of your Web server.
-
 
 ### Install from an Archive File
 
 This is not currently available. We will provide it when Yii 2 is formally released.
 
+
 GETTING STARTED
 ---------------
 
-After template application and its dependencies are downloaded you need to initialize it and set some config values to
-match your application requirements.
+After you install the application, you have to conduct the following steps to initialize
+the installed application. You only need to do these once for all.
 
-1. Execute `install` command selecting `dev` as environment.
-2. Set `id` value in `console/config/main.php`, `frontend/config/main.php`, `backstage/config/main.php`.
-3. Create new database. It is assumed that MySQL InnoDB is used. If not, adjust `console/migrations/m130524_201442_init.php`.
-4. In `common/config/params.php` set your database details in `components.db` values.
+1. Execute the `init` command and select `dev` as environment.
+2. Create a new database. It is assumed that MySQL InnoDB is used. If not, adjust `console/migrations/m130524_201442_init.php`.
+3. In `common/config/params.php` set your database details in `components.db` values.
+
+Now you should be able to access:
+
+- the frontend using the URL `http://localhost/yii-advanced/frontend/www/`
+- the backstage using the URL `http://localhost/yii-advanced/backstage/www/`
+
+assuming `yii-advanced` is directly under the document root of your Web server.
 
diff --git a/apps/advanced/backstage/config/main.php b/apps/advanced/backstage/config/main.php
index 4898bfd..6e55c47 100644
--- a/apps/advanced/backstage/config/main.php
+++ b/apps/advanced/backstage/config/main.php
@@ -9,7 +9,7 @@ $params = array_merge(
 );
 
 return array(
-	'id' => 'change-me',
+	'id' => 'app-backend',
 	'basePath' => dirname(__DIR__),
 	'vendorPath' => dirname(dirname(__DIR__)) . '/vendor',
 	'preload' => array('log'),
diff --git a/apps/advanced/composer.json b/apps/advanced/composer.json
index db97efd..95b3b13 100644
--- a/apps/advanced/composer.json
+++ b/apps/advanced/composer.json
@@ -36,9 +36,6 @@
 
 			"frontend/runtime",
 			"frontend/www/assets"
-		],
-		"yii-install-executable": [
-			"yii"
 		]
 	}
 }
diff --git a/apps/advanced/console/config/main.php b/apps/advanced/console/config/main.php
index cceb311..37db1d2 100644
--- a/apps/advanced/console/config/main.php
+++ b/apps/advanced/console/config/main.php
@@ -9,7 +9,7 @@ $params = array_merge(
 );
 
 return array(
-	'id' => 'change-me',
+	'id' => 'app-console',
 	'basePath' => dirname(__DIR__),
 	'vendorPath' => dirname(dirname(__DIR__)) . '/vendor',
 	'preload' => array('log'),
diff --git a/apps/advanced/console/migrations/m130524_201442_init.php b/apps/advanced/console/migrations/m130524_201442_init.php
index 24a74c3..a5e9d30 100644
--- a/apps/advanced/console/migrations/m130524_201442_init.php
+++ b/apps/advanced/console/migrations/m130524_201442_init.php
@@ -1,5 +1,7 @@
 <?php
 
+use yii\db\Schema;
+
 class m130524_201442_init extends \yii\db\Migration
 {
 	public function up()
diff --git a/apps/advanced/frontend/config/main.php b/apps/advanced/frontend/config/main.php
index 02a66c9..e53cfe8 100644
--- a/apps/advanced/frontend/config/main.php
+++ b/apps/advanced/frontend/config/main.php
@@ -9,7 +9,7 @@ $params = array_merge(
 );
 
 return array(
-	'id' => 'change-me',
+	'id' => 'app-frontend',
 	'basePath' => dirname(__DIR__),
 	'vendorPath' => dirname(dirname(__DIR__)) . '/vendor',
 	'preload' => array('log'),
diff --git a/apps/advanced/install b/apps/advanced/init
similarity index 87%
rename from apps/advanced/install
rename to apps/advanced/init
index 6864440..17ed854 100755
--- a/apps/advanced/install
+++ b/apps/advanced/init
@@ -4,27 +4,27 @@ $root = str_replace('\\', '/', __DIR__);
 $envs = require("$root/environments/index.php");
 $envNames = array_keys($envs);
 
-echo "Yii Application Installation Tool v1.0\n\n";
-echo "Which environment do you want to install the application to?\n\n";
+echo "Yii Application Init Tool v1.0\n\n";
+echo "Which environment do you want the application to be initialized in?\n\n";
 foreach ($envNames as $i => $name) {
 	echo "  [$i] $name\n";
 }
 echo "\n  Your choice [0-" . (count($envs) - 1) . ', or "q" to quit] ';
 $answer = trim(fgets(STDIN));
 if (!ctype_digit($answer) || !isset($envNames[$answer])) {
-	echo "\n  Quit installation.\n";
+	echo "\n  Quit initialization.\n";
 	return;
 }
 
 $env = $envs[$envNames[$answer]];
-echo "\n  Install the application under '{$envNames[$answer]}' environment? [yes|no] ";
+echo "\n  Initialize the application under '{$envNames[$answer]}' environment? [yes|no] ";
 $answer = trim(fgets(STDIN));
 if (strncasecmp($answer, 'y', 1)) {
-	echo "\n  Quit installation.\n";
+	echo "\n  Quit initialization.\n";
 	return;
 }
 
-echo "\n  Start installation ...\n\n";
+echo "\n  Start initialization ...\n\n";
 $files = getFileList("$root/environments/{$env['path']}");
 $all = false;
 foreach ($files as $file) {
@@ -47,7 +47,7 @@ if (isset($env['executable'])) {
 	}
 }
 
-echo "\n  ... installation completed.\n\n";
+echo "\n  ... initialization completed.\n\n";
 
 function getFileList($root, $basePath = '')
 {
diff --git a/apps/advanced/install.bat b/apps/advanced/init.bat
similarity index 100%
rename from apps/advanced/install.bat
rename to apps/advanced/init.bat
diff --git a/docs/guide/upgrade-from-v1.md b/docs/guide/upgrade-from-v1.md
index b3d4411..ebfe94b 100644
--- a/docs/guide/upgrade-from-v1.md
+++ b/docs/guide/upgrade-from-v1.md
@@ -13,7 +13,7 @@ The most obvious change in Yii 2.0 is the use of namespaces. Almost every core c
 is namespaced, e.g., `yii\web\Request`. The "C" prefix is no longer used in class names.
 The naming of the namespaces follows the directory structure. For example, `yii\web\Request`
 indicates the corresponding class file is `web/Request.php` under the Yii framework folder.
-You can use any core class without explicitly include that class file, thanks to the Yii
+You can use any core class without explicitly including that class file, thanks to the Yii
 class loader.
 
 
@@ -117,17 +117,17 @@ supported in most places in the Yii core code. For example, `FileCache::cachePat
 both a path alias and a normal directory path.
 
 Path alias is also closely related with class namespaces. It is recommended that a path
-alias defined for each root namespace so that you can use Yii class autoloader without
+alias be defined for each root namespace so that you can use Yii the class autoloader without
 any further configuration. For example, because `@yii` refers to the Yii installation directory,
 a class like `yii\web\Request` can be autoloaded by Yii. If you use a third party library
-such as Zend Framework, you may define a path alias `@Zend` which refers to its installation directory.
-And Yii will be able to autoload any class in this library.
+such as Zend Framework, you may define a path alias `@Zend` which refers to its installation 
+directory and Yii will be able to autoload any class in this library.
 
 
 View
 ----
 
-Yii 2.0 introduces a `View` class to represent the view part in the MVC pattern.
+Yii 2.0 introduces a `View` class to represent the view part of the MVC pattern.
 It can be configured globally through the "view" application component. It is also
 accessible in any view file via `$this`. This is one of the biggest changes compared to 1.1:
 **`$this` in a view file no longer refers to the controller or widget object.**
@@ -159,7 +159,7 @@ extension for your Smarty views, or `twig` for Twig views. You may also configur
 Models
 ------
 
-A model is now associated with a form name returned its `formName()` method. This is
+A model is now associated with a form name returned by its `formName()` method. This is
 mainly used when using HTML forms to collect user inputs for a model. Previously in 1.1,
 this is usually hardcoded as the class name of the model.
 
@@ -235,7 +235,7 @@ Previously in 1.1, you would have to enter the widget class names as strings via
 Themes
 ------
 
-Theme works completely different in 2.0. It is now based on a path map to "translate" a source
+Themes work completely different in 2.0. They are now based on a path map to "translate" a source
 view into a themed view. For example, if the path map for a theme is
 `array('/www/views' => '/www/themes/basic')`, then the themed version for a view file
 `/www/views/site/index.php` will be `/www/themes/basic/site/index.php`.
@@ -250,7 +250,7 @@ application component.
 Console Applications
 --------------------
 
-Console applications are now composed by controllers, too, like Web applications. In fact,
+Console applications are now composed by controllers, like Web applications. In fact,
 console controllers and Web controllers share the same base controller class.
 
 Each console controller is like `CConsoleCommand` in 1.1. It consists of one or several
@@ -300,7 +300,7 @@ public function behaviors()
 Assets
 ------
 
-Yii 2.0 introduces a new concept called *asset bundle*. It is a bit similar to script
+Yii 2.0 introduces a new concept called *asset bundle*. It is similar to script
 packages (managed by `CClientScript`) in 1.1, but with better support.
 
 An asset bundle is a collection of asset files (e.g. JavaScript files, CSS files, image files, etc.)
@@ -315,7 +315,7 @@ Static Helpers
 
 Yii 2.0 introduces many commonly used static helper classes, such as `Html`, `ArrayHelper`,
 `StringHelper`. These classes are designed to be easily extended. Note that static classes
-are usually hard to be extended because of the fixed class name references. But Yii 2.0
+are usually hard to extend because of the fixed class name references. But Yii 2.0
 introduces the class map (via `Yii::$classMap`) to overcome this difficulty.
 
 
@@ -343,7 +343,7 @@ Query Builder
 
 In 1.1, query building is scattered among several classes, including `CDbCommand`,
 `CDbCriteria`, and `CDbCommandBuilder`. Yii 2.0 uses `Query` to represent a DB query
-and `QueryBuilder` to generate SQL statements from query objects. For example,
+and `QueryBuilder` to generate SQL statements from query objects. For example:
 
 ```php
 $query = new \yii\db\Query;
@@ -365,7 +365,7 @@ ActiveRecord
 ------------
 
 ActiveRecord has undergone significant changes in Yii 2.0. The most important one
-is about relational ActiveRecord query. In 1.1, you have to declare the relations
+is the relational ActiveRecord query. In 1.1, you have to declare the relations
 in the `relations()` method. In 2.0, this is done via getter methods that return
 an `ActiveQuery` object. For example, the following method declares an "orders" relation:
 
@@ -392,7 +392,7 @@ by filtering with the primary keys of the primary records.
 
 
 Yii 2.0 no longer uses the `model()` method when performing queries. Instead, you
-use the `find()` method like the following:
+use the `find()` method:
 
 ```php
 // to retrieve all *active* customers and order them by their ID:
@@ -410,14 +410,14 @@ Therefore, you can use all query methods of `Query`.
 
 Instead of returning ActiveRecord objects, you may call `ActiveQuery::asArray()` to
 return results in terms of arrays. This is more efficient and is especially useful
-when you need to return large number of records. For example,
+when you need to return a large number of records:
 
 ```php
 $customers = Customer::find()->asArray()->all();
 ```
 
 By default, ActiveRecord now only saves dirty attributes. In 1.1, all attributes
-would be saved to database when you call `save()`, regardless they are changed or not,
+are saved to database when you call `save()`, regardless of having changed or not,
 unless you explicitly list the attributes to save.
 
 
@@ -427,7 +427,7 @@ Auto-quoting Table and Column Names
 Yii 2.0 supports automatic quoting of database table and column names. A name enclosed
 within double curly brackets is treated as a table name, and a name enclosed within
 double square brackets is treated as a column name. They will be quoted according to
-the database driver being used. For example,
+the database driver being used:
 
 ```php
 $command = $connection->createCommand('SELECT [[id]] FROM {{posts}}');
diff --git a/framework/yii/assets.php b/framework/yii/assets.php
index 79fbeb5..63f7560 100644
--- a/framework/yii/assets.php
+++ b/framework/yii/assets.php
@@ -48,4 +48,11 @@ return array(
 			YII_DEBUG ? 'punycode/punycode.js' : 'punycode/punycode.min.js',
 		),
 	),
+	'yii/maskedinput' => array(
+		'sourcePath' => __DIR__ . '/assets',
+		'js' => array(
+			'jquery.maskedinput.js',
+		),
+		'depends' => array('yii/jquery'),
+	),
 );
diff --git a/framework/yii/assets/jquery.maskedinput.js b/framework/yii/assets/jquery.maskedinput.js
new file mode 100644
index 0000000..49a5a72
--- /dev/null
+++ b/framework/yii/assets/jquery.maskedinput.js
@@ -0,0 +1,338 @@
+/*
+	Masked Input plugin for jQuery
+	Copyright (c) 2007-2013 Josh Bush (digitalbush.com)
+	Licensed under the MIT license (http://digitalbush.com/projects/masked-input-plugin/#license)
+	Version: 1.3.1
+*/
+(function($) {
+	function getPasteEvent() {
+    var el = document.createElement('input'),
+        name = 'onpaste';
+    el.setAttribute(name, '');
+    return (typeof el[name] === 'function')?'paste':'input';             
+}
+
+var pasteEventName = getPasteEvent() + ".mask",
+	ua = navigator.userAgent,
+	iPhone = /iphone/i.test(ua),
+	android=/android/i.test(ua),
+	caretTimeoutId;
+
+$.mask = {
+	//Predefined character definitions
+	definitions: {
+		'9': "[0-9]",
+		'a': "[A-Za-z]",
+		'*': "[A-Za-z0-9]"
+	},
+	dataName: "rawMaskFn",
+	placeholder: '_',
+};
+
+$.fn.extend({
+	//Helper Function for Caret positioning
+	caret: function(begin, end) {
+		var range;
+
+		if (this.length === 0 || this.is(":hidden")) {
+			return;
+		}
+
+		if (typeof begin == 'number') {
+			end = (typeof end === 'number') ? end : begin;
+			return this.each(function() {
+				if (this.setSelectionRange) {
+					this.setSelectionRange(begin, end);
+				} else if (this.createTextRange) {
+					range = this.createTextRange();
+					range.collapse(true);
+					range.moveEnd('character', end);
+					range.moveStart('character', begin);
+					range.select();
+				}
+			});
+		} else {
+			if (this[0].setSelectionRange) {
+				begin = this[0].selectionStart;
+				end = this[0].selectionEnd;
+			} else if (document.selection && document.selection.createRange) {
+				range = document.selection.createRange();
+				begin = 0 - range.duplicate().moveStart('character', -100000);
+				end = begin + range.text.length;
+			}
+			return { begin: begin, end: end };
+		}
+	},
+	unmask: function() {
+		return this.trigger("unmask");
+	},
+	mask: function(mask, settings) {
+		var input,
+			defs,
+			tests,
+			partialPosition,
+			firstNonMaskPos,
+			len;
+
+		if (!mask && this.length > 0) {
+			input = $(this[0]);
+			return input.data($.mask.dataName)();
+		}
+		settings = $.extend({
+			placeholder: $.mask.placeholder, // Load default placeholder
+			completed: null
+		}, settings);
+
+
+		defs = $.mask.definitions;
+		tests = [];
+		partialPosition = len = mask.length;
+		firstNonMaskPos = null;
+
+		$.each(mask.split(""), function(i, c) {
+			if (c == '?') {
+				len--;
+				partialPosition = i;
+			} else if (defs[c]) {
+				tests.push(new RegExp(defs[c]));
+				if (firstNonMaskPos === null) {
+					firstNonMaskPos = tests.length - 1;
+				}
+			} else {
+				tests.push(null);
+			}
+		});
+
+		return this.trigger("unmask").each(function() {
+			var input = $(this),
+				buffer = $.map(
+				mask.split(""),
+				function(c, i) {
+					if (c != '?') {
+						return defs[c] ? settings.placeholder : c;
+					}
+				}),
+				focusText = input.val();
+
+			function seekNext(pos) {
+				while (++pos < len && !tests[pos]);
+				return pos;
+			}
+
+			function seekPrev(pos) {
+				while (--pos >= 0 && !tests[pos]);
+				return pos;
+			}
+
+			function shiftL(begin,end) {
+				var i,
+					j;
+
+				if (begin<0) {
+					return;
+				}
+
+				for (i = begin, j = seekNext(end); i < len; i++) {
+					if (tests[i]) {
+						if (j < len && tests[i].test(buffer[j])) {
+							buffer[i] = buffer[j];
+							buffer[j] = settings.placeholder;
+						} else {
+							break;
+						}
+
+						j = seekNext(j);
+					}
+				}
+				writeBuffer();
+				input.caret(Math.max(firstNonMaskPos, begin));
+			}
+
+			function shiftR(pos) {
+				var i,
+					c,
+					j,
+					t;
+
+				for (i = pos, c = settings.placeholder; i < len; i++) {
+					if (tests[i]) {
+						j = seekNext(i);
+						t = buffer[i];
+						buffer[i] = c;
+						if (j < len && tests[j].test(t)) {
+							c = t;
+						} else {
+							break;
+						}
+					}
+				}
+			}
+
+			function keydownEvent(e) {
+				var k = e.which,
+					pos,
+					begin,
+					end;
+
+				//backspace, delete, and escape get special treatment
+				if (k === 8 || k === 46 || (iPhone && k === 127)) {
+					pos = input.caret();
+					begin = pos.begin;
+					end = pos.end;
+
+					if (end - begin === 0) {
+						begin=k!==46?seekPrev(begin):(end=seekNext(begin-1));
+						end=k===46?seekNext(end):end;
+					}
+					clearBuffer(begin, end);
+					shiftL(begin, end - 1);
+
+					e.preventDefault();
+				} else if (k == 27) {//escape
+					input.val(focusText);
+					input.caret(0, checkVal());
+					e.preventDefault();
+				}
+			}
+
+			function keypressEvent(e) {
+				var k = e.which,
+					pos = input.caret(),
+					p,
+					c,
+					next;
+
+				if (e.ctrlKey || e.altKey || e.metaKey || k < 32) {//Ignore
+					return;
+				} else if (k) {
+					if (pos.end - pos.begin !== 0){
+						clearBuffer(pos.begin, pos.end);
+						shiftL(pos.begin, pos.end-1);
+					}
+
+					p = seekNext(pos.begin - 1);
+					if (p < len) {
+						c = String.fromCharCode(k);
+						if (tests[p].test(c)) {
+							shiftR(p);
+
+							buffer[p] = c;
+							writeBuffer();
+							next = seekNext(p);
+
+							if(android){
+								setTimeout($.proxy($.fn.caret,input,next),0);
+							}else{
+								input.caret(next);
+							}
+
+							if (settings.completed && next >= len) {
+								settings.completed.call(input);
+							}
+						}
+					}
+					e.preventDefault();
+				}
+			}
+
+			function clearBuffer(start, end) {
+				var i;
+				for (i = start; i < end && i < len; i++) {
+					if (tests[i]) {
+						buffer[i] = settings.placeholder;
+					}
+				}
+			}
+
+			function writeBuffer() { input.val(buffer.join('')); }
+
+			function checkVal(allow) {
+				//try to place characters where they belong
+				var test = input.val(),
+					lastMatch = -1,
+					i,
+					c;
+
+				for (i = 0, pos = 0; i < len; i++) {
+					if (tests[i]) {
+						buffer[i] = settings.placeholder;
+						while (pos++ < test.length) {
+							c = test.charAt(pos - 1);
+							if (tests[i].test(c)) {
+								buffer[i] = c;
+								lastMatch = i;
+								break;
+							}
+						}
+						if (pos > test.length) {
+							break;
+						}
+					} else if (buffer[i] === test.charAt(pos) && i !== partialPosition) {
+						pos++;
+						lastMatch = i;
+					}
+				}
+				if (allow) {
+					writeBuffer();
+				} else if (lastMatch + 1 < partialPosition) {
+					input.val("");
+					clearBuffer(0, len);
+				} else {
+					writeBuffer();
+					input.val(input.val().substring(0, lastMatch + 1));
+				}
+				return (partialPosition ? i : firstNonMaskPos);
+			}
+
+			input.data($.mask.dataName,function(){
+				return $.map(buffer, function(c, i) {
+					return tests[i]&&c!=settings.placeholder ? c : null;
+				}).join('');
+			});
+
+			if (!input.attr("readonly"))
+				input
+				.one("unmask", function() {
+					input
+						.unbind(".mask")
+						.removeData($.mask.dataName);
+				})
+				.bind("focus.mask", function() {
+					clearTimeout(caretTimeoutId);
+					var pos,
+						moveCaret;
+
+					focusText = input.val();
+					pos = checkVal();
+					
+					caretTimeoutId = setTimeout(function(){
+						writeBuffer();
+						if (pos == mask.length) {
+							input.caret(0, pos);
+						} else {
+							input.caret(pos);
+						}
+					}, 10);
+				})
+				.bind("blur.mask", function() {
+					checkVal();
+					if (input.val() != focusText)
+						input.change();
+				})
+				.bind("keydown.mask", keydownEvent)
+				.bind("keypress.mask", keypressEvent)
+				.bind(pasteEventName, function() {
+					setTimeout(function() { 
+						var pos=checkVal(true);
+						input.caret(pos); 
+						if (settings.completed && pos == input.val().length)
+							settings.completed.call(input);
+					}, 0);
+				});
+			checkVal(); //Perform initial check for existing values
+		});
+	}
+});
+
+
+})(jQuery);
\ No newline at end of file
diff --git a/framework/yii/base/ActionFilter.php b/framework/yii/base/ActionFilter.php
index d69c0fe..20ff142 100644
--- a/framework/yii/base/ActionFilter.php
+++ b/framework/yii/base/ActionFilter.php
@@ -30,8 +30,8 @@ class ActionFilter extends Behavior
 	public function events()
 	{
 		return array(
-			'beforeAction' => 'beforeFilter',
-			'afterAction' => 'afterFilter',
+			Controller::EVENT_BEFORE_ACTION => 'beforeFilter',
+			Controller::EVENT_AFTER_ACTION => 'afterFilter',
 		);
 	}
 
diff --git a/framework/yii/base/Application.php b/framework/yii/base/Application.php
index eb0a0d3..d38f6a9 100644
--- a/framework/yii/base/Application.php
+++ b/framework/yii/base/Application.php
@@ -279,6 +279,15 @@ class Application extends Module
 	}
 
 	/**
+	 * Returns the formatter component.
+	 * @return \yii\base\Formatter the formatter application component.
+	 */
+	public function getFormatter()
+	{
+		return $this->getComponent('formatter');
+	}
+
+	/**
 	 * Returns the request component.
 	 * @return \yii\web\Request|\yii\console\Request the request component
 	 */
@@ -333,6 +342,9 @@ class Application extends Module
 			'errorHandler' => array(
 				'class' => 'yii\base\ErrorHandler',
 			),
+			'formatter' => array(
+				'class' => 'yii\base\Formatter',
+			),
 			'i18n' => array(
 				'class' => 'yii\i18n\I18N',
 			),
diff --git a/framework/yii/base/Controller.php b/framework/yii/base/Controller.php
index 543605f..af33b63 100644
--- a/framework/yii/base/Controller.php
+++ b/framework/yii/base/Controller.php
@@ -151,43 +151,13 @@ class Controller extends Component
 	/**
 	 * Binds the parameters to the action.
 	 * This method is invoked by [[Action]] when it begins to run with the given parameters.
-	 * This method will check the parameter names that the action requires and return
-	 * the provided parameters according to the requirement. If there is any missing parameter,
-	 * an exception will be thrown.
 	 * @param Action $action the action to be bound with parameters
 	 * @param array $params the parameters to be bound to the action
 	 * @return array the valid parameters that the action can run with.
-	 * @throws InvalidRequestException if there are missing parameters.
 	 */
 	public function bindActionParams($action, $params)
 	{
-		if ($action instanceof InlineAction) {
-			$method = new \ReflectionMethod($this, $action->actionMethod);
-		} else {
-			$method = new \ReflectionMethod($action, 'run');
-		}
-
-		$args = array();
-		$missing = array();
-		foreach ($method->getParameters() as $param) {
-			$name = $param->getName();
-			if (array_key_exists($name, $params)) {
-				$args[] = $params[$name];
-				unset($params[$name]);
-			} elseif ($param->isDefaultValueAvailable()) {
-				$args[] = $param->getDefaultValue();
-			} else {
-				$missing[] = $name;
-			}
-		}
-
-		if (!empty($missing)) {
-			throw new InvalidRequestException(Yii::t('yii', 'Missing required parameters: {params}', array(
-				'{params}' => implode(', ', $missing),
-			)));
-		}
-
-		return $args;
+		return array();
 	}
 
 	/**
@@ -272,18 +242,6 @@ class Controller extends Component
 	}
 
 	/**
-	 * Validates the parameter being bound to actions.
-	 * This method is invoked when parameters are being bound to the currently requested action.
-	 * Child classes may override this method to throw exceptions when there are missing and/or unknown parameters.
-	 * @param Action $action the currently requested action
-	 * @param array $missingParams the names of the missing parameters
-	 * @param array $unknownParams the unknown parameters (name => value)
-	 */
-	public function validateActionParams($action, $missingParams, $unknownParams)
-	{
-	}
-
-	/**
 	 * @return string the controller ID that is prefixed with the module ID (if any).
 	 */
 	public function getUniqueId()
diff --git a/framework/yii/base/Formatter.php b/framework/yii/base/Formatter.php
new file mode 100644
index 0000000..d15e5f2
--- /dev/null
+++ b/framework/yii/base/Formatter.php
@@ -0,0 +1,292 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\base;
+
+use Yii;
+use DateTime;
+use yii\helpers\HtmlPurifier;
+use yii\helpers\Html;
+
+
+/**
+ * Formatter provides a set of commonly used data formatting methods.
+ *
+ * The formatting methods provided by Formatter are all named in the form of `asXyz()`.
+ * The behavior of some of them may be configured via the properties of Formatter. For example,
+ * by configuring [[dateFormat]], one may control how [[asDate()]] formats the value into a date string.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class Formatter extends Component
+{
+	/**
+	 * @var string the default format string to be used to format a date using PHP date() function.
+	 */
+	public $dateFormat = 'Y/m/d';
+	/**
+	 * @var string the default format string to be used to format a time using PHP date() function.
+	 */
+	public $timeFormat = 'h:i:s A';
+	/**
+	 * @var string the default format string to be used to format a date and time using PHP date() function.
+	 */
+	public $datetimeFormat = 'Y/m/d h:i:s A';
+	/**
+	 * @var array the text to be displayed when formatting a boolean value. The first element corresponds
+	 * to the text display for false, the second element for true. Defaults to <code>array('No', 'Yes')</code>.
+	 */
+	public $booleanFormat;
+	/**
+	 * @var string the character displayed as the decimal point when formatting a number.
+	 */
+	public $decimalSeparator = '.';
+	/**
+	 * @var string the character displayed as the thousands separator character when formatting a number.
+	 */
+	public $thousandSeparator = ',';
+
+
+	/**
+	 * Initializes the component.
+	 */
+	public function init()
+	{
+		if (empty($this->booleanFormat)) {
+			$this->booleanFormat = array(Yii::t('yii', 'No'), Yii::t('yii', 'Yes'));
+		}
+	}
+
+	/**
+	 * Formats the value as is without any formatting.
+	 * This method simply returns back the parameter without any format.
+	 * @param mixed $value the value to be formatted
+	 * @return string the formatted result
+	 */
+	public function asRaw($value)
+	{
+		return $value;
+	}
+
+	/**
+	 * Formats the value as an HTML-encoded plain text.
+	 * @param mixed $value the value to be formatted
+	 * @return string the formatted result
+	 */
+	public function asText($value)
+	{
+		return Html::encode($value);
+	}
+
+	/**
+	 * Formats the value as an HTML-encoded plain text with newlines converted into breaks.
+	 * @param mixed $value the value to be formatted
+	 * @return string the formatted result
+	 */
+	public function asNtext($value)
+	{
+		return nl2br(Html::encode($value));
+	}
+
+	/**
+	 * Formats the value as HTML-encoded text paragraphs.
+	 * Each text paragraph is enclosed within a `<p>` tag.
+	 * One or multiple consecutive empty lines divide two paragraphs.
+	 * @param mixed $value the value to be formatted
+	 * @return string the formatted result
+	 */
+	public function asParagraphs($value)
+	{
+		return str_replace('<p></p>', '',
+			'<p>' . preg_replace('/[\r\n]{2,}/', "</p>\n<p>", Html::encode($value)) . '</p>'
+		);
+	}
+
+	/**
+	 * Formats the value as HTML text.
+	 * The value will be purified using [[HtmlPurifier]] to avoid XSS attacks.
+	 * Use [[asRaw()]] if you do not want any purification of the value.
+	 * @param mixed $value the value to be formatted
+	 * @param array|null $config the configuration for the HTMLPurifier class.
+	 * @return string the formatted result
+	 */
+	public function asHtml($value, $config = null)
+	{
+		return HtmlPurifier::process($value, $config);
+	}
+
+	/**
+	 * Formats the value as a mailto link.
+	 * @param mixed $value the value to be formatted
+	 * @return string the formatted result
+	 */
+	public function asEmail($value)
+	{
+		return Html::mailto($value);
+	}
+
+	/**
+	 * Formats the value as an image tag.
+	 * @param mixed $value the value to be formatted
+	 * @return string the formatted result
+	 */
+	public function asImage($value)
+	{
+		return Html::img($value);
+	}
+
+	/**
+	 * Formats the value as a hyperlink.
+	 * @param mixed $value the value to be formatted
+	 * @return string the formatted result
+	 */
+	public function asUrl($value)
+	{
+		$url = $value;
+		if (strpos($url, 'http://') !== 0 && strpos($url, 'https://') !== 0) {
+			$url = 'http://' . $url;
+		}
+		return Html::a(Html::encode($value), $url);
+	}
+
+	/**
+	 * Formats the value as a boolean.
+	 * @param mixed $value the value to be formatted
+	 * @return string the formatted result
+	 * @see booleanFormat
+	 */
+	public function asBoolean($value)
+	{
+		return $value ? $this->booleanFormat[1] : $this->booleanFormat[0];
+	}
+
+	/**
+	 * Formats the value as a date.
+	 * @param integer|string|DateTime $value the value to be formatted. The following
+	 * types of value are supported:
+	 *
+	 * - an integer representing a UNIX timestamp
+	 * - a string that can be parsed into a UNIX timestamp via `strtotime()`
+	 * - a PHP DateTime object
+	 *
+	 * @param string $format the format used to convert the value into a date string.
+	 * If null, [[dateFormat]] will be used. The format string should be one
+	 * that can be recognized by the PHP `date()` function.
+	 * @return string the formatted result
+	 * @see dateFormat
+	 */
+	public function asDate($value, $format = null)
+	{
+		$value = $this->normalizeDatetimeValue($value);
+		return date($format === null ? $this->dateFormat : $format, $value);
+	}
+
+	/**
+	 * Formats the value as a time.
+	 * @param integer|string|DateTime $value the value to be formatted. The following
+	 * types of value are supported:
+	 *
+	 * - an integer representing a UNIX timestamp
+	 * - a string that can be parsed into a UNIX timestamp via `strtotime()`
+	 * - a PHP DateTime object
+	 *
+	 * @param string $format the format used to convert the value into a date string.
+	 * If null, [[timeFormat]] will be used. The format string should be one
+	 * that can be recognized by the PHP `date()` function.
+	 * @return string the formatted result
+	 * @see timeFormat
+	 */
+	public function asTime($value, $format = null)
+	{
+		$value = $this->normalizeDatetimeValue($value);
+		return date($format === null ? $this->timeFormat : $format, $value);
+	}
+
+	/**
+	 * Formats the value as a datetime.
+	 * @param integer|string|DateTime $value the value to be formatted. The following
+	 * types of value are supported:
+	 *
+	 * - an integer representing a UNIX timestamp
+	 * - a string that can be parsed into a UNIX timestamp via `strtotime()`
+	 * - a PHP DateTime object
+	 *
+	 * @param string $format the format used to convert the value into a date string.
+	 * If null, [[datetimeFormat]] will be used. The format string should be one
+	 * that can be recognized by the PHP `date()` function.
+	 * @return string the formatted result
+	 * @see datetimeFormat
+	 */
+	public function asDatetime($value, $format = null)
+	{
+		$value = $this->normalizeDatetimeValue($value);
+		return date($format === null ? $this->datetimeFormat : $format, $value);
+	}
+
+	/**
+	 * Normalizes the given datetime value as one that can be taken by various date/time formatting methods.
+	 * @param mixed $value the datetime value to be normalized.
+	 * @return mixed the normalized datetime value
+	 */
+	protected function normalizeDatetimeValue($value)
+	{
+		if (is_string($value)) {
+			if (ctype_digit($value) || $value[0] === '-' && ctype_digit(substr($value, 1))) {
+				return (int)$value;
+			} else {
+				return strtotime($value);
+			}
+		} elseif ($value instanceof DateTime) {
+			return $value->getTimestamp();
+		} else {
+			return (int)$value;
+		}
+	}
+
+	/**
+	 * Formats the value as an integer.
+	 * @param mixed $value the value to be formatted
+	 * @return string the formatting result.
+	 */
+	public function asInteger($value)
+	{
+		if (is_string($value) && preg_match('/^(-?\d+)/', $value, $matches)) {
+			return $matches[1];
+		} else {
+			$value = (int)$value;
+			return "$value";
+		}
+	}
+
+	/**
+	 * Formats the value as a double number.
+	 * Property [[decimalSeparator]] will be used to represent the decimal point.
+	 * @param mixed $value the value to be formatted
+	 * @param integer $decimals the number of digits after the decimal point
+	 * @return string the formatting result.
+	 * @see decimalSeparator
+	 */
+	public function asDouble($value, $decimals = 2)
+	{
+		return str_replace('.', $this->decimalSeparator, sprintf("%.{$decimals}f", $value));
+	}
+
+	/**
+	 * Formats the value as a number with decimal and thousand separators.
+	 * This method calls the PHP number_format() function to do the formatting.
+	 * @param mixed $value the value to be formatted
+	 * @param integer $decimals the number of digits after the decimal point
+	 * @return string the formatted result
+	 * @see decimalSeparator
+	 * @see thousandSeparator
+	 */
+	public function asNumber($value, $decimals = 0)
+	{
+		return number_format($value, $decimals, $this->decimalSeparator, $this->thousandSeparator);
+	}
+}
diff --git a/framework/yii/base/InvalidRequestException.php b/framework/yii/base/InvalidRequestException.php
deleted file mode 100644
index f4806ce..0000000
--- a/framework/yii/base/InvalidRequestException.php
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php
-/**
- * @link http://www.yiiframework.com/
- * @copyright Copyright (c) 2008 Yii Software LLC
- * @license http://www.yiiframework.com/license/
- */
-
-namespace yii\base;
-
-/**
- * InvalidRequestException represents an exception caused by incorrect end user request.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @since 2.0
- */
-class InvalidRequestException extends UserException
-{
-	/**
-	 * @return string the user-friendly name of this exception
-	 */
-	public function getName()
-	{
-		return \Yii::t('yii', 'Invalid Request');
-	}
-}
-
diff --git a/framework/yii/bootstrap/Dropdown.php b/framework/yii/bootstrap/Dropdown.php
index 7a8cd51..8ba0eef 100644
--- a/framework/yii/bootstrap/Dropdown.php
+++ b/framework/yii/bootstrap/Dropdown.php
@@ -8,7 +8,7 @@
 namespace yii\bootstrap;
 
 use yii\base\InvalidConfigException;
-use yii\helpers\base\ArrayHelper;
+use yii\helpers\ArrayHelper;
 use yii\helpers\Html;
 
 
@@ -32,17 +32,22 @@ class Dropdown extends Widget
 	 *     // optional, url of the item link
 	 *     'url' => '',
 	 *     // optional the HTML attributes of the item link
-	 *     'urlOptions'=> array(...),
+	 *     'linkOptions'=> array(...),
 	 *     // optional the HTML attributes of the item
 	 *     'options'=> array(...),
 	 *     // optional, an array of items that configure a sub menu of the item
 	 *     // note: if `items` is set, then `url` of the parent item will be ignored and automatically set to "#"
+	 *     // important: there is an issue with sub-dropdown menus, and as of 3.0, bootstrap won't support sub-dropdown
+	 *     // @see https://github.com/twitter/bootstrap/issues/5050#issuecomment-11741727
 	 *     'items'=> array(...)
 	 * )
 	 * ```
-	 * Additionally, you can also configure a dropdown item as string.
 	 */
 	public $items = array();
+	/**
+	 * @var boolean whether the labels for header items should be HTML-encoded.
+	 */
+	public $encodeLabels = true;
 
 
 	/**
@@ -60,43 +65,41 @@ class Dropdown extends Widget
 	 */
 	public function run()
 	{
-		echo Html::beginTag('ul', $this->options) . "\n";
-		echo $this->renderContents() . "\n";
-		echo Html::endTag('ul') . "\n";
+		echo $this->renderItems() . "\n";
 		$this->registerPlugin('dropdown');
 	}
 
 	/**
-	 * Renders dropdown contents as specified on [[items]].
+	 * Renders dropdown items as specified on [[items]].
 	 * @return string the rendering result.
 	 * @throws InvalidConfigException
 	 */
-	protected function renderContents()
+	protected function renderItems()
 	{
-		$contents = array();
+		$items = array();
 		foreach ($this->items as $item) {
 			if (is_string($item)) {
-				$contents[] = $item;
+				$items[] = $item;
 				continue;
 			}
 			if (!isset($item['label'])) {
 				throw new InvalidConfigException("The 'label' option is required.");
 			}
-
+			$label = $this->encodeLabels ? Html::encode($item['label']) : $item['label'];
 			$options = ArrayHelper::getValue($item, 'options', array());
-			$urlOptions = ArrayHelper::getValue($item, 'urlOptions', array());
-			$urlOptions['tabindex'] = '-1';
+			$linkOptions = ArrayHelper::getValue($item, 'linkOptions', array());
+			$linkOptions['tabindex'] = '-1';
 
 			if (isset($item['items'])) {
 				$this->addCssClass($options, 'dropdown-submenu');
-				$content = Html::a($item['label'], '#', $urlOptions) . $this->dropdown($item['items']);
+				$content = Html::a($label, '#', $linkOptions) . $this->dropdown($item['items']);
 			} else {
-				$content = Html::a($item['label'], ArrayHelper::getValue($item, 'url', '#'), $urlOptions);
+				$content = Html::a($label, ArrayHelper::getValue($item, 'url', '#'), $linkOptions);
 			}
-			$contents[] = Html::tag('li', $content , $options);
+			$items[] = Html::tag('li', $content , $options);
 		}
 
-		return implode("\n", $contents);
+		return Html::tag('ul', implode("\n", $items), $this->options);
 	}
 
 	/**
diff --git a/framework/yii/helpers/base/Html.php b/framework/yii/helpers/base/Html.php
index 90396ec..9a0001c 100644
--- a/framework/yii/helpers/base/Html.php
+++ b/framework/yii/helpers/base/Html.php
@@ -344,7 +344,7 @@ class Html
 	/**
 	 * Generates a hyperlink tag.
 	 * @param string $text link body. It will NOT be HTML-encoded. Therefore you can pass in HTML code
-	 * such as an image tag. If this is is coming from end users, you should consider [[encode()]]
+	 * such as an image tag. If this is coming from end users, you should consider [[encode()]]
 	 * it to prevent XSS attacks.
 	 * @param array|string|null $url the URL for the hyperlink tag. This parameter will be processed by [[url()]]
 	 * and will be used for the "href" attribute of the tag. If this parameter is null, the "href" attribute
@@ -366,7 +366,7 @@ class Html
 	/**
 	 * Generates a mailto hyperlink.
 	 * @param string $text link body. It will NOT be HTML-encoded. Therefore you can pass in HTML code
-	 * such as an image tag. If this is is coming from end users, you should consider [[encode()]]
+	 * such as an image tag. If this is coming from end users, you should consider [[encode()]]
 	 * it to prevent XSS attacks.
 	 * @param string $email email address. If this is null, the first parameter (link body) will be treated
 	 * as the email address and used.
diff --git a/framework/yii/i18n/Formatter.php b/framework/yii/i18n/Formatter.php
new file mode 100644
index 0000000..d688a15
--- /dev/null
+++ b/framework/yii/i18n/Formatter.php
@@ -0,0 +1,232 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\i18n;
+
+use Yii;
+use IntlDateFormatter;
+use NumberFormatter;
+use DateTime;
+use yii\base\InvalidConfigException;
+
+/**
+ * Formatter is the localized version of [[\yii\base\Formatter]].
+ *
+ * Formatter requires the PHP "intl" extension to be installed. Formatter supports localized
+ * formatting of date, time and numbers, based on the current [[locale]].
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class Formatter extends \yii\base\Formatter
+{
+	/**
+	 * @var string the locale ID that is used to localize the date and number formatting.
+	 * If not set, [[\yii\base\Application::language]] will be used.
+	 */
+	public $locale;
+	/**
+	 * @var string the default format string to be used to format a date using PHP date() function.
+	 */
+	public $dateFormat = 'short';
+	/**
+	 * @var string the default format string to be used to format a time using PHP date() function.
+	 */
+	public $timeFormat = 'short';
+	/**
+	 * @var string the default format string to be used to format a date and time using PHP date() function.
+	 */
+	public $datetimeFormat = 'short';
+	/**
+	 * @var array the options to be set for the NumberFormatter objects. Please refer to
+	 */
+	public $numberFormatOptions = array();
+
+
+	/**
+	 * Initializes the component.
+	 * This method will check if the "intl" PHP extension is installed and set the
+	 * default value of [[locale]].
+	 * @throws InvalidConfigException if the "intl" PHP extension is not installed.
+	 */
+	public function init()
+	{
+		if (!extension_loaded('intl')) {
+			throw new InvalidConfigException('The "intl" PHP extension is not install. It is required to format data values in localized formats.');
+		}
+		if ($this->locale === null) {
+			$this->locale = Yii::$app->language;
+		}
+		parent::init();
+	}
+
+	private $_dateFormats = array(
+		'short' => IntlDateFormatter::SHORT,
+		'medium' => IntlDateFormatter::MEDIUM,
+		'long' => IntlDateFormatter::LONG,
+		'full' => IntlDateFormatter::FULL,
+	);
+
+	/**
+	 * Formats the value as a date.
+	 * @param integer|string|DateTime $value the value to be formatted. The following
+	 * types of value are supported:
+	 *
+	 * - an integer representing a UNIX timestamp
+	 * - a string that can be parsed into a UNIX timestamp via `strtotime()`
+	 * - a PHP DateTime object
+	 *
+	 * @param string $format the format used to convert the value into a date string.
+	 * If null, [[dateFormat]] will be used. The format string should be the one
+	 * that can be recognized by the PHP `date()` function.
+	 * @return string the formatted result
+	 * @see dateFormat
+	 */
+	public function asDate($value, $format = null)
+	{
+		$value = $this->normalizeDatetimeValue($value);
+		if ($format === null) {
+			$format = $this->dateFormat;
+		}
+		if (isset($this->_dateFormats[$format])) {
+			$formatter = new IntlDateFormatter($this->locale, $this->_dateFormats[$format], IntlDateFormatter::NONE);
+		} else {
+			$formatter = new IntlDateFormatter($this->locale, IntlDateFormatter::NONE, IntlDateFormatter::NONE);
+			$formatter->setPattern($format);
+		}
+		return $formatter->format($value);
+	}
+
+	/**
+	 * Formats the value as a time.
+	 * @param integer|string|DateTime $value the value to be formatted. The following
+	 * types of value are supported:
+	 *
+	 * - an integer representing a UNIX timestamp
+	 * - a string that can be parsed into a UNIX timestamp via `strtotime()`
+	 * - a PHP DateTime object
+	 *
+	 * @param string $format the format used to convert the value into a date string.
+	 * If null, [[dateFormat]] will be used. The format string should be the one
+	 * that can be recognized by the PHP `date()` function.
+	 * @return string the formatted result
+	 * @see timeFormat
+	 */
+	public function asTime($value, $format = null)
+	{
+		$value = $this->normalizeDatetimeValue($value);
+		if ($format === null) {
+			$format = $this->timeFormat;
+		}
+		if (isset($this->_dateFormats[$format])) {
+			$formatter = new IntlDateFormatter($this->locale, IntlDateFormatter::NONE, $this->_dateFormats[$format]);
+		} else {
+			$formatter = new IntlDateFormatter($this->locale, IntlDateFormatter::NONE, IntlDateFormatter::NONE);
+			$formatter->setPattern($format);
+		}
+		return $formatter->format($value);
+	}
+
+	/**
+	 * Formats the value as a datetime.
+	 * @param integer|string|DateTime $value the value to be formatted. The following
+	 * types of value are supported:
+	 *
+	 * - an integer representing a UNIX timestamp
+	 * - a string that can be parsed into a UNIX timestamp via `strtotime()`
+	 * - a PHP DateTime object
+	 *
+	 * @param string $format the format used to convert the value into a date string.
+	 * If null, [[dateFormat]] will be used. The format string should be the one
+	 * that can be recognized by the PHP `date()` function.
+	 * @return string the formatted result
+	 * @see datetimeFormat
+	 */
+	public function asDatetime($value, $format = null)
+	{
+		$value = $this->normalizeDatetimeValue($value);
+		if ($format === null) {
+			$format = $this->datetimeFormat;
+		}
+		if (isset($this->_dateFormats[$format])) {
+			$formatter = new IntlDateFormatter($this->locale, $this->_dateFormats[$format], $this->_dateFormats[$format]);
+		} else {
+			$formatter = new IntlDateFormatter($this->locale, IntlDateFormatter::NONE, IntlDateFormatter::NONE);
+			$formatter->setPattern($format);
+		}
+		return $formatter->format($value);
+	}
+
+	/**
+	 * Formats the value as a decimal number.
+	 * @param mixed $value the value to be formatted
+	 * @param string $format the format to be used. Please refer to [ICU manual](http://www.icu-project.org/apiref/icu4c/classDecimalFormat.html#_details)
+	 * for details on how to specify a format.
+	 * @return string the formatted result.
+	 */
+	public function asDecimal($value, $format = null)
+	{
+		return $this->createNumberFormatter(NumberFormatter::DECIMAL, $format)->format($value);
+	}
+
+	/**
+	 * Formats the value as a currency number.
+	 * @param mixed $value the value to be formatted
+	 * @param string $currency the 3-letter ISO 4217 currency code indicating the currency to use.
+	 * @param string $format the format to be used. Please refer to [ICU manual](http://www.icu-project.org/apiref/icu4c/classDecimalFormat.html#_details)
+	 * for details on how to specify a format.
+	 * @return string the formatted result.
+	 */
+	public function asCurrency($value, $currency = 'USD', $format = null)
+	{
+		return $this->createNumberFormatter(NumberFormatter::CURRENCY, $format)->formatCurrency($value, $currency);
+	}
+
+	/**
+	 * Formats the value as a percent number.
+	 * @param mixed $value the value to be formatted
+	 * @param string $format the format to be used. Please refer to [ICU manual](http://www.icu-project.org/apiref/icu4c/classDecimalFormat.html#_details)
+	 * for details on how to specify a format.
+	 * @return string the formatted result.
+	 */
+	public function asPercent($value, $format = null)
+	{
+		return $this->createNumberFormatter(NumberFormatter::PERCENT, $format)->format($value);
+	}
+
+	/**
+	 * Formats the value as a scientific number.
+	 * @param mixed $value the value to be formatted
+	 * @param string $format the format to be used. Please refer to [ICU manual](http://www.icu-project.org/apiref/icu4c/classDecimalFormat.html#_details)
+	 * for details on how to specify a format.
+	 * @return string the formatted result.
+	 */
+	public function asScientific($value, $format = null)
+	{
+		return $this->createNumberFormatter(NumberFormatter::SCIENTIFIC, $format)->format($value);
+	}
+
+	/**
+	 * Creates a number formatter based on the given type and format.
+	 * @param integer $type the type of the number formatter
+	 * @param string $format the format to be used
+	 * @return NumberFormatter the created formatter instance
+	 */
+	protected function createNumberFormatter($type, $format)
+	{
+		$formatter = new NumberFormatter($this->locale, $type);
+		if ($format !== null) {
+			$formatter->setPattern($format);
+		}
+		if (!empty($this->numberFormatOptions)) {
+			foreach ($this->numberFormatOptions as $name => $attribute) {
+				$formatter->setAttribute($name, $attribute);
+			}
+		}
+		return $formatter;
+	}
+}
diff --git a/framework/yii/requirements/requirements.php b/framework/yii/requirements/requirements.php
index 0dbc1fc..63aa70d 100644
--- a/framework/yii/requirements/requirements.php
+++ b/framework/yii/requirements/requirements.php
@@ -43,6 +43,6 @@ return array(
 		'mandatory' => false,
 		'condition' => $this->checkPhpExtensionVersion('intl', '1.0.2'),
 		'by' => '<a href="http://www.php.net/manual/en/book.intl.php">Internationalization</a> support',
-		'memo' => 'PHP Intl extension 1.0.2 or higher is required when you want to use <abbr title="Internationalized domain names">IDN</abbr>-feature of EmailValidator or UrlValidator.'
+		'memo' => 'PHP Intl extension 1.0.2 or higher is required when you want to use <abbr title="Internationalized domain names">IDN</abbr>-feature of EmailValidator or UrlValidator or the <code>yii\i18n\Formatter</code> class.'
 	),
 );
\ No newline at end of file
diff --git a/framework/yii/web/Controller.php b/framework/yii/web/Controller.php
index 517f4b4..026c078 100644
--- a/framework/yii/web/Controller.php
+++ b/framework/yii/web/Controller.php
@@ -8,6 +8,8 @@
 namespace yii\web;
 
 use Yii;
+use yii\base\HttpException;
+use yii\base\InlineAction;
 
 /**
  * Controller is the base class of Web controllers.
@@ -19,6 +21,48 @@ use Yii;
 class Controller extends \yii\base\Controller
 {
 	/**
+	 * Binds the parameters to the action.
+	 * This method is invoked by [[Action]] when it begins to run with the given parameters.
+	 * This method will check the parameter names that the action requires and return
+	 * the provided parameters according to the requirement. If there is any missing parameter,
+	 * an exception will be thrown.
+	 * @param \yii\base\Action $action the action to be bound with parameters
+	 * @param array $params the parameters to be bound to the action
+	 * @return array the valid parameters that the action can run with.
+	 * @throws HttpException if there are missing parameters.
+	 */
+	public function bindActionParams($action, $params)
+	{
+		if ($action instanceof InlineAction) {
+			$method = new \ReflectionMethod($this, $action->actionMethod);
+		} else {
+			$method = new \ReflectionMethod($action, 'run');
+		}
+
+		$args = array();
+		$missing = array();
+		foreach ($method->getParameters() as $param) {
+			$name = $param->getName();
+			if (array_key_exists($name, $params)) {
+				$args[] = $params[$name];
+				unset($params[$name]);
+			} elseif ($param->isDefaultValueAvailable()) {
+				$args[] = $param->getDefaultValue();
+			} else {
+				$missing[] = $name;
+			}
+		}
+
+		if (!empty($missing)) {
+			throw new HttpException(400, Yii::t('yii', 'Missing required parameters: {params}', array(
+				'{params}' => implode(', ', $missing),
+			)));
+		}
+
+		return $args;
+	}
+
+	/**
 	 * Creates a URL using the given route and parameters.
 	 *
 	 * This method enhances [[UrlManager::createUrl()]] by supporting relative routes.
diff --git a/framework/yii/web/VerbFilter.php b/framework/yii/web/VerbFilter.php
new file mode 100644
index 0000000..9b475e3
--- /dev/null
+++ b/framework/yii/web/VerbFilter.php
@@ -0,0 +1,90 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\web;
+
+use Yii;
+use yii\base\ActionEvent;
+use yii\base\Behavior;
+use yii\base\HttpException;
+
+/**
+ * VerbFilter is an action filter that filters by HTTP request methods.
+ *
+ * It allows to define allowed HTTP request methods for each action and will throw
+ * an HTTP 405 error when the method is not allowed.
+ *
+ * To use VerbFilter, declare it in the `behaviors()` method of your controller class.
+ * For example, the following declarations will define a typical set of allowed
+ * request methods for REST CRUD actions.
+ *
+ * ~~~
+ * public function behaviors()
+ * {
+ *     return array(
+ *         'verbs' => array(
+ *             'class' => \yii\web\VerbFilter::className(),
+ *             'actions' => array(
+ *                 'index'  => array('get'),
+ *                 'view'   => array('get'),
+ *                 'create' => array('get', 'post'),
+ *                 'update' => array('get', 'put', 'post'),
+ *                 'delete' => array('post', 'delete'),
+ *             ),
+ *         ),
+ *     );
+ * }
+ * ~~~
+ *
+ * @see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.7
+ * @author Carsten Brandt <mail@cebe.cc>
+ * @since 2.0
+ */
+class VerbFilter extends Behavior
+{
+	/**
+	 * @var array this property defines the allowed request methods for each action.
+	 * For each action that should only support limited set of request methods
+	 * you add an entry with the action id as array key and an array of
+	 * allowed methods (e.g. GET, HEAD, PUT) as the value.
+	 * If an action is not listed all request methods are considered allowed.
+	 */
+	public $actions = array();
+
+
+	/**
+	 * Declares event handlers for the [[owner]]'s events.
+	 * @return array events (array keys) and the corresponding event handler methods (array values).
+	 */
+	public function events()
+	{
+		return array(
+			Controller::EVENT_BEFORE_ACTION => 'beforeAction',
+		);
+	}
+
+	/**
+	 * @param ActionEvent $event
+	 * @return boolean
+	 * @throws \yii\base\HttpException when the request method is not allowed.
+	 */
+	public function beforeAction($event)
+	{
+		$action = $event->action->id;
+		if (isset($this->actions[$action])) {
+			$verb = Yii::$app->getRequest()->getRequestMethod();
+			$allowed = array_map('strtoupper', $this->actions[$action]);
+			if (!in_array($verb, $allowed)) {
+				$event->isValid = false;
+				// http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.7
+				header('Allow: ' . implode(', ', $allowed));
+				throw new HttpException(405, 'Method Not Allowed. This url can only handle the following request methods: ' . implode(', ', $allowed));
+			}
+		}
+		return $event->isValid;
+	}
+}
diff --git a/framework/yii/widgets/ActiveForm.php b/framework/yii/widgets/ActiveForm.php
index 25a2054..eb14293 100644
--- a/framework/yii/widgets/ActiveForm.php
+++ b/framework/yii/widgets/ActiveForm.php
@@ -134,8 +134,8 @@ class ActiveForm extends Widget
 			$id = $this->options['id'];
 			$options = Json::encode($this->getClientOptions());
 			$attributes = Json::encode($this->attributes);
-			$this->view->registerAssetBundle('yii/form');
-			$this->view->registerJs("jQuery('#$id').yiiActiveForm($attributes, $options);");
+			$this->getView()->registerAssetBundle('yii/form');
+			$this->getView()->registerJs("jQuery('#$id').yiiActiveForm($attributes, $options);");
 		}
 		echo Html::endForm();
 	}
diff --git a/framework/yii/widgets/InputWidget.php b/framework/yii/widgets/InputWidget.php
new file mode 100644
index 0000000..e1981c9
--- /dev/null
+++ b/framework/yii/widgets/InputWidget.php
@@ -0,0 +1,64 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\widgets;
+
+use Yii;
+use yii\base\Widget;
+use yii\base\Model;
+use yii\base\InvalidConfigException;
+
+/**
+ * InputWidget is the base class for widgets that collect user inputs.
+ *
+ * An input widget can be associated with a data model and an attribute,
+ * or a name and a value. If the former, the name and the value will
+ * be generated automatically.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class InputWidget extends Widget
+{
+	/**
+	 * @var Model the data model that this widget is associated with.
+	 */
+	public $model;
+	/**
+	 * @var string the model attribute that this widget is associated with.
+	 */
+	public $attribute;
+	/**
+	 * @var string the input name. This must be set if [[model]] and [[attribute]] are not set.
+	 */
+	public $name;
+	/**
+	 * @var string the input value.
+	 */
+	public $value;
+
+
+	/**
+	 * Initializes the widget.
+	 * If you override this method, make sure you call the parent implementation first.
+	 */
+	public function init()
+	{
+		if (!$this->hasModel() && $this->name === null) {
+			throw new InvalidConfigException("Either 'name' or 'model' and 'attribute' properties must be specified.");
+		}
+		parent::init();
+	}
+
+	/**
+	 * @return boolean whether this widget is associated with a data model.
+	 */
+	protected function hasModel()
+	{
+		return $this->model instanceof Model && $this->attribute !== null;
+	}
+}
diff --git a/framework/yii/widgets/MaskedInput.php b/framework/yii/widgets/MaskedInput.php
new file mode 100644
index 0000000..a5a23f5
--- /dev/null
+++ b/framework/yii/widgets/MaskedInput.php
@@ -0,0 +1,136 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\widgets;
+
+use yii\base\InvalidConfigException;
+use yii\helpers\Html;
+use yii\helpers\Json;
+use yii\web\JsExpression;
+
+/**
+ * MaskedInput generates a masked text input.
+ *
+ * MaskedInput is similar to [[Html::textInput()]] except that
+ * an input mask will be used to force users to enter properly formatted data,
+ * such as phone numbers, social security numbers.
+ * 
+ * To use MaskedInput, you must set the [[mask]] property. The following example
+ * shows how to use MaskedInput to collect phone numbers:
+ * 
+ * ~~~
+ * echo MaskedInput::widget(array(
+ *     'name' => 'phone',
+ *     'mask' => '999-999-9999',
+ * ));
+ * ~~~
+ * 
+ * The masked text field is implemented based on the [jQuery masked input plugin](http://digitalbush.com/projects/masked-input-plugin).
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class MaskedInput extends InputWidget
+{
+	/**
+	 * @var string the input mask (e.g. '99/99/9999' for date input). The following characters are predefined:
+	 *
+	 * - `a`: represents an alpha character (A-Z,a-z)
+	 * - `9`: represents a numeric character (0-9)
+	 * - `*`: represents an alphanumeric character (A-Z,a-z,0-9)
+	 * - `?`: anything listed after '?' within the mask is considered optional user input
+	 *
+	 * Additional characters can be defined by specifying the [[charMap]] property.
+	 */
+	public $mask;
+	/**
+	 * @var array the mapping between mask characters and the corresponding patterns.
+	 * For example, `array('~' => '[+-]')` specifies that the '~' character expects '+' or '-' input.
+	 * Defaults to null, meaning using the map as described in [[mask]].
+	 */
+	public $charMap;
+	/**
+	 * @var string the character prompting for user input. Defaults to underscore '_'.
+	 */
+	public $placeholder;
+	/**
+	 * @var string a JavaScript function callback that will be invoked when user finishes the input.
+	 */
+	public $completed;
+	/**
+	 * @var array the HTML attributes for the input tag.
+	 */
+	public $options = array();
+
+
+	/**
+	 * Initializes the widget.
+	 * @throws InvalidConfigException if the "mask" property is not set.
+	 */
+	public function init()
+	{
+		parent::init();
+		if (empty($this->mask)) {
+			throw new InvalidConfigException('The "mask" property must be set.');
+		}
+
+		if (!isset($this->options['id'])) {
+			$this->options['id'] = $this->hasModel() ? Html::getInputId($this->model, $this->attribute) : $this->getId();
+		}
+	}
+
+	/**
+	 * Runs the widget.
+	 */
+	public function run()
+	{
+		if ($this->hasModel()) {
+			echo Html::activeTextInput($this->model, $this->attribute, $this->options);
+		} else {
+			echo Html::textInput($this->name, $this->value, $this->options);
+		}
+		$this->registerClientScript();
+	}
+
+	/**
+	 * Registers the needed JavaScript.
+	 */
+	public function registerClientScript()
+	{
+		$options = $this->getClientOptions();
+		$options = empty($options) ? '' : ',' . Json::encode($options);
+		$js = '';
+		if (is_array($this->charMap) && !empty($this->charMap)) {
+			$js .= 'jQuery.mask.definitions=' . Json::encode($this->charMap) . ";\n";
+		}
+		$id = $this->options['id'];
+		$js .= "jQuery(\"#{$id}\").mask(\"{$this->mask}\"{$options});";
+		$this->getView()->registerAssetBundle('yii/maskedinput');
+		$this->getView()->registerJs($js);
+	}
+
+	/**
+	 * @return array the options for the text field
+	 */
+	protected function getClientOptions()
+	{
+		$options = array();
+		if ($this->placeholder !== null) {
+			$options['placeholder'] = $this->placeholder;
+		}
+
+		if ($this->completed !== null) {
+			if ($this->completed instanceof JsExpression) {
+				$options['completed'] = $this->completed;
+			} else {
+				$options['completed'] = new JsExpression($this->completed);
+			}
+		}
+
+		return $options;
+	}
+}
diff --git a/tests/unit/framework/base/FormatterTest.php b/tests/unit/framework/base/FormatterTest.php
new file mode 100644
index 0000000..e9a909f
--- /dev/null
+++ b/tests/unit/framework/base/FormatterTest.php
@@ -0,0 +1,179 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+namespace yiiunit\framework\base;
+
+use yii\base\Formatter;
+use yiiunit\TestCase;
+
+/**
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class FormatterTest extends TestCase
+{
+	/**
+	 * @var Formatter
+	 */
+	protected $formatter;
+
+	protected function setUp()
+	{
+		parent::setUp();
+		$this->mockApplication();
+		$this->formatter = new Formatter();
+	}
+
+	protected function tearDown()
+	{
+		parent::tearDown();
+		$this->formatter = null;
+	}
+
+	public function testAsRaw()
+	{
+		$value = '123';
+		$this->assertSame($value, $this->formatter->asRaw($value));
+		$value = 123;
+		$this->assertSame($value, $this->formatter->asRaw($value));
+		$value = '<>';
+		$this->assertSame($value, $this->formatter->asRaw($value));
+	}
+
+	public function testAsText()
+	{
+		$value = '123';
+		$this->assertSame($value, $this->formatter->asText($value));
+		$value = 123;
+		$this->assertSame("$value", $this->formatter->asText($value));
+		$value = '<>';
+		$this->assertSame('&lt;&gt;', $this->formatter->asText($value));
+	}
+
+	public function testAsNtext()
+	{
+		$value = '123';
+		$this->assertSame($value, $this->formatter->asNtext($value));
+		$value = 123;
+		$this->assertSame("$value", $this->formatter->asNtext($value));
+		$value = '<>';
+		$this->assertSame('&lt;&gt;', $this->formatter->asNtext($value));
+		$value = "123\n456";
+		$this->assertSame("123<br />\n456", $this->formatter->asNtext($value));
+	}
+
+	public function testAsParagraphs()
+	{
+		$value = '123';
+		$this->assertSame("<p>$value</p>", $this->formatter->asParagraphs($value));
+		$value = 123;
+		$this->assertSame("<p>$value</p>", $this->formatter->asParagraphs($value));
+		$value = '<>';
+		$this->assertSame('<p>&lt;&gt;</p>', $this->formatter->asParagraphs($value));
+		$value = "123\n456";
+		$this->assertSame("<p>123\n456</p>", $this->formatter->asParagraphs($value));
+		$value = "123\n\n456";
+		$this->assertSame("<p>123</p>\n<p>456</p>", $this->formatter->asParagraphs($value));
+		$value = "123\n\n\n456";
+		$this->assertSame("<p>123</p>\n<p>456</p>", $this->formatter->asParagraphs($value));
+	}
+
+	public function testAsHtml()
+	{
+		// todo: dependency on HtmlPurifier
+	}
+
+	public function testAsEmail()
+	{
+		$value = 'test@sample.com';
+		$this->assertSame("<a href=\"mailto:$value\">$value</a>", $this->formatter->asEmail($value));
+	}
+
+	public function testAsImage()
+	{
+		$value = 'http://sample.com/img.jpg';
+		$this->assertSame("<img src=\"$value\" alt=\"\" />", $this->formatter->asImage($value));
+	}
+
+	public function testAsBoolean()
+	{
+		$value = true;
+		$this->assertSame('Yes', $this->formatter->asBoolean($value));
+		$value = false;
+		$this->assertSame('No', $this->formatter->asBoolean($value));
+		$value = "111";
+		$this->assertSame('Yes', $this->formatter->asBoolean($value));
+		$value = "";
+		$this->assertSame('No', $this->formatter->asBoolean($value));
+	}
+
+	public function testAsDate()
+	{
+		$value = time();
+		$this->assertSame(date('Y/m/d', $value), $this->formatter->asDate($value));
+		$this->assertSame(date('Y-m-d', $value), $this->formatter->asDate($value, 'Y-m-d'));
+	}
+
+	public function testAsTime()
+	{
+		$value = time();
+		$this->assertSame(date('h:i:s A', $value), $this->formatter->asTime($value));
+		$this->assertSame(date('h:i:s', $value), $this->formatter->asTime($value, 'h:i:s'));
+	}
+
+	public function testAsDatetime()
+	{
+		$value = time();
+		$this->assertSame(date('Y/m/d h:i:s A', $value), $this->formatter->asDatetime($value));
+		$this->assertSame(date('Y-m-d h:i:s', $value), $this->formatter->asDatetime($value, 'Y-m-d h:i:s'));
+	}
+
+	public function testAsInteger()
+	{
+		$value = 123;
+		$this->assertSame("$value", $this->formatter->asInteger($value));
+		$value = 123.23;
+		$this->assertSame("123", $this->formatter->asInteger($value));
+		$value = 'a';
+		$this->assertSame("0", $this->formatter->asInteger($value));
+		$value = -123.23;
+		$this->assertSame("-123", $this->formatter->asInteger($value));
+		$value = "-123abc";
+		$this->assertSame("-123", $this->formatter->asInteger($value));
+	}
+
+	public function testAsDouble()
+	{
+		$value = 123.12;
+		$this->assertSame("123.12", $this->formatter->asDouble($value));
+		$this->assertSame("123.1", $this->formatter->asDouble($value, 1));
+		$this->assertSame("123", $this->formatter->asDouble($value, 0));
+		$value = 123;
+		$this->assertSame("123.00", $this->formatter->asDouble($value));
+		$this->formatter->decimalSeparator = ',';
+		$value = 123.12;
+		$this->assertSame("123,12", $this->formatter->asDouble($value));
+		$this->assertSame("123,1", $this->formatter->asDouble($value, 1));
+		$this->assertSame("123", $this->formatter->asDouble($value, 0));
+		$value = 123123.123;
+		$this->assertSame("123123,12", $this->formatter->asDouble($value));
+	}
+
+	public function testAsNumber()
+	{
+		$value = 123123.123;
+		$this->assertSame("123,123", $this->formatter->asNumber($value));
+		$this->assertSame("123,123.12", $this->formatter->asNumber($value, 2));
+		$this->formatter->decimalSeparator = ',';
+		$this->formatter->thousandSeparator = ' ';
+		$this->assertSame("123 123", $this->formatter->asNumber($value));
+		$this->assertSame("123 123,12", $this->formatter->asNumber($value, 2));
+		$this->formatter->thousandSeparator = '';
+		$this->assertSame("123123", $this->formatter->asNumber($value));
+		$this->assertSame("123123,12", $this->formatter->asNumber($value, 2));
+	}
+}
diff --git a/tests/unit/framework/i18n/FormatterTest.php b/tests/unit/framework/i18n/FormatterTest.php
new file mode 100644
index 0000000..f742f22
--- /dev/null
+++ b/tests/unit/framework/i18n/FormatterTest.php
@@ -0,0 +1,88 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yiiunit\framework\i18n;
+
+use yii\i18n\Formatter;
+use yiiunit\TestCase;
+
+/**
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class FormatterTest extends TestCase
+{
+	/**
+	 * @var Formatter
+	 */
+	protected $formatter;
+
+	protected function setUp()
+	{
+		parent::setUp();
+		if (!extension_loaded('intl')) {
+			$this->markTestSkipped('intl extension is required.');
+		}
+		$this->mockApplication();
+		$this->formatter = new Formatter(array(
+			'locale' => 'en_US',
+		));
+	}
+
+	protected function tearDown()
+	{
+		parent::tearDown();
+		$this->formatter = null;
+	}
+
+	public function testAsDecimal()
+	{
+		$value = '123';
+		$this->assertSame($value, $this->formatter->asDecimal($value));
+		$value = '123456';
+		$this->assertSame("123,456", $this->formatter->asDecimal($value));
+		$value = '-123456.123';
+		$this->assertSame("-123,456.123", $this->formatter->asDecimal($value));
+	}
+
+	public function testAsPercent()
+	{
+		$value = '123';
+		$this->assertSame('12,300%', $this->formatter->asPercent($value));
+		$value = '0.1234';
+		$this->assertSame("12%", $this->formatter->asPercent($value));
+		$value = '-0.009343';
+		$this->assertSame("-1%", $this->formatter->asPercent($value));
+	}
+
+	public function testAsScientific()
+	{
+		$value = '123';
+		$this->assertSame('1.23E2', $this->formatter->asScientific($value));
+		$value = '123456';
+		$this->assertSame("1.23456E5", $this->formatter->asScientific($value));
+		$value = '-123456.123';
+		$this->assertSame("-1.23456123E5", $this->formatter->asScientific($value));
+	}
+
+	public function testAsCurrency()
+	{
+		$value = '123';
+		$this->assertSame('$123.00', $this->formatter->asCurrency($value));
+		$value = '123.456';
+		$this->assertSame("$123.46", $this->formatter->asCurrency($value));
+		$value = '-123456.123';
+		$this->assertSame("($123,456.12)", $this->formatter->asCurrency($value));
+	}
+
+	public function testDate()
+	{
+		$time = time();
+		$this->assertSame(date('n/j/y', $time), $this->formatter->asDate($time));
+		$this->assertSame(date('M j, Y', $time), $this->formatter->asDate($time, 'long'));
+	}
+}