diff --git a/framework/base/Application.php b/framework/base/Application.php
index fd6527f..e0d0237 100644
--- a/framework/base/Application.php
+++ b/framework/base/Application.php
@@ -202,11 +202,11 @@ class Application extends Module
 	 */
 	public function setRuntimePath($path)
 	{
-		$p = FileHelper::ensureDirectory($path);
-		if (is_writable($p)) {
-			$this->_runtimePath = $p;
+		$path = Yii::getAlias($path);
+		if (is_dir($path) && is_writable($path)) {
+			$this->_runtimePath = $path;
 		} else {
-			throw new InvalidConfigException("Runtime path must be writable by the Web server process: $path");
+			throw new InvalidConfigException("Runtime path must be a directory writable by the Web server process: $path");
 		}
 	}
 
@@ -227,11 +227,10 @@ class Application extends Module
 	/**
 	 * Sets the directory that stores vendor files.
 	 * @param string $path the directory that stores vendor files.
-	 * @throws InvalidConfigException if the directory does not exist
 	 */
 	public function setVendorPath($path)
 	{
-		$this->_vendorPath = FileHelper::ensureDirectory($path);
+		$this->_vendorPath = Yii::getAlias($path);
 	}
 
 	/**
diff --git a/framework/base/Controller.php b/framework/base/Controller.php
index 6ff68da..d11d19b 100644
--- a/framework/base/Controller.php
+++ b/framework/base/Controller.php
@@ -428,7 +428,7 @@ class Controller extends Component
 			$file = $this->getViewPath() . DIRECTORY_SEPARATOR . $view;
 		}
 
-		return FileHelper::getExtension($file) === '' ? $file . '.php' : $file;
+		return pathinfo($file, PATHINFO_EXTENSION) === '' ? $file . '.php' : $file;
 	}
 
 	/**
@@ -463,7 +463,7 @@ class Controller extends Component
 			$file = $module->getLayoutPath() . DIRECTORY_SEPARATOR . $view;
 		}
 
-		if (FileHelper::getExtension($file) === '') {
+		if (pathinfo($file, PATHINFO_EXTENSION) === '') {
 			$file .= '.php';
 		}
 		return $file;
diff --git a/framework/base/Module.php b/framework/base/Module.php
index 0b2bd16..ee97614 100644
--- a/framework/base/Module.php
+++ b/framework/base/Module.php
@@ -211,7 +211,13 @@ abstract class Module extends Component
 	 */
 	public function setBasePath($path)
 	{
-		$this->_basePath = FileHelper::ensureDirectory($path);
+		$path = Yii::getAlias($path);
+		$p = realpath($path);
+		if ($p !== false && is_dir($p)) {
+			$this->_basePath = $p;
+		} else {
+			throw new InvalidParamException("The directory does not exist: $path");
+		}
 	}
 
 	/**
@@ -236,7 +242,7 @@ abstract class Module extends Component
 	 */
 	public function setControllerPath($path)
 	{
-		$this->_controllerPath = FileHelper::ensureDirectory($path);
+		$this->_controllerPath = Yii::getAlias($path);
 	}
 
 	/**
@@ -259,7 +265,7 @@ abstract class Module extends Component
 	 */
 	public function setViewPath($path)
 	{
-		$this->_viewPath = FileHelper::ensureDirectory($path);
+		$this->_viewPath = Yii::getAlias($path);
 	}
 
 	/**
@@ -282,7 +288,7 @@ abstract class Module extends Component
 	 */
 	public function setLayoutPath($path)
 	{
-		$this->_layoutPath = FileHelper::ensureDirectory($path);
+		$this->_layoutPath = Yii::getAlias($path);
 	}
 
 	/**
diff --git a/framework/base/Theme.php b/framework/base/Theme.php
index e529a63..a60d56e 100644
--- a/framework/base/Theme.php
+++ b/framework/base/Theme.php
@@ -61,10 +61,10 @@ class Theme extends Component
 	 	parent::init();
 		if (empty($this->pathMap)) {
 			if ($this->basePath !== null) {
-				$this->basePath = FileHelper::ensureDirectory($this->basePath);
+				$this->basePath = Yii::getAlias($this->basePath);
 				$this->pathMap = array(Yii::$app->getBasePath() => $this->basePath);
 			} else {
-				throw new InvalidConfigException("Theme::basePath must be set.");
+				throw new InvalidConfigException('The "basePath" property must be set.');
 			}
 		}
 		$paths = array();
@@ -75,7 +75,7 @@ class Theme extends Component
 		}
 		$this->pathMap = $paths;
 		if ($this->baseUrl === null) {
-			throw new InvalidConfigException("Theme::baseUrl must be set.");
+			throw new InvalidConfigException('The "baseUrl" property must be set.');
 		} else {
 			$this->baseUrl = rtrim(Yii::getAlias($this->baseUrl), '/');
 		}
diff --git a/framework/base/Widget.php b/framework/base/Widget.php
index c6667fa..13e6d30 100644
--- a/framework/base/Widget.php
+++ b/framework/base/Widget.php
@@ -131,6 +131,6 @@ class Widget extends Component
 			$file = $this->getViewPath() . DIRECTORY_SEPARATOR . ltrim($view, '/');
 		}
 
-		return FileHelper::getExtension($file) === '' ? $file . '.php' : $file;
+		return pathinfo($file, PATHINFO_EXTENSION) === '' ? $file . '.php' : $file;
 	}
 }
\ No newline at end of file
diff --git a/framework/console/controllers/AppController.php b/framework/console/controllers/AppController.php
index 2c32c54..237ba0f 100644
--- a/framework/console/controllers/AppController.php
+++ b/framework/console/controllers/AppController.php
@@ -86,7 +86,7 @@ class AppController extends Controller
 			$sourceDir = $this->getSourceDir();
 			$config = $this->getConfig();
 
-			$list = FileHelper::buildFileList($sourceDir, $path);
+			$list = $this->buildFileList($sourceDir, $path);
 
 			if(is_array($config)) {
 				foreach($config as $file => $settings) {
@@ -96,7 +96,7 @@ class AppController extends Controller
 				}
 			}
 
-			FileHelper::copyFiles($list);
+			$this->copyFiles($list);
 
 			if(is_array($config)) {
 				foreach($config as $file => $settings) {
@@ -204,4 +204,121 @@ class AppController extends Controller
 
 		return '__DIR__.\''.$up.'/'.basename($path1).'\'';
 	}
+
+
+	/**
+	 * Copies a list of files from one place to another.
+	 * @param array $fileList the list of files to be copied (name=>spec).
+	 * The array keys are names displayed during the copy process, and array values are specifications
+	 * for files to be copied. Each array value must be an array of the following structure:
+	 * <ul>
+	 * <li>source: required, the full path of the file/directory to be copied from</li>
+	 * <li>target: required, the full path of the file/directory to be copied to</li>
+	 * <li>callback: optional, the callback to be invoked when copying a file. The callback function
+	 *   should be declared as follows:
+	 *   <pre>
+	 *   function foo($source,$params)
+	 *   </pre>
+	 *   where $source parameter is the source file path, and the content returned
+	 *   by the function will be saved into the target file.</li>
+	 * <li>params: optional, the parameters to be passed to the callback</li>
+	 * </ul>
+	 * @see buildFileList
+	 */
+	protected function copyFiles($fileList)
+	{
+		$overwriteAll = false;
+		foreach($fileList as $name=>$file) {
+			$source = strtr($file['source'], '/\\', DIRECTORY_SEPARATOR);
+			$target = strtr($file['target'], '/\\', DIRECTORY_SEPARATOR);
+			$callback = isset($file['callback']) ? $file['callback'] : null;
+			$params = isset($file['params']) ? $file['params'] : null;
+
+			if(is_dir($source)) {
+				if (!is_dir($target)) {
+					mkdir($target, 0777, true);
+				}
+				continue;
+			}
+
+			if($callback !== null) {
+				$content = call_user_func($callback, $source, $params);
+			}
+			else {
+				$content = file_get_contents($source);
+			}
+			if(is_file($target)) {
+				if($content === file_get_contents($target)) {
+					echo "  unchanged $name\n";
+					continue;
+				}
+				if($overwriteAll) {
+					echo "  overwrite $name\n";
+				}
+				else {
+					echo "      exist $name\n";
+					echo "            ...overwrite? [Yes|No|All|Quit] ";
+					$answer = trim(fgets(STDIN));
+					if(!strncasecmp($answer, 'q', 1)) {
+						return;
+					}
+					elseif(!strncasecmp($answer, 'y', 1)) {
+						echo "  overwrite $name\n";
+					}
+					elseif(!strncasecmp($answer, 'a', 1)) {
+						echo "  overwrite $name\n";
+						$overwriteAll = true;
+					}
+					else {
+						echo "       skip $name\n";
+						continue;
+					}
+				}
+			}
+			else {
+				if (!is_dir(dirname($target))) {
+					mkdir(dirname($target), 0777, true);
+				}
+				echo "   generate $name\n";
+			}
+			file_put_contents($target, $content);
+		}
+	}
+
+	/**
+	 * Builds the file list of a directory.
+	 * This method traverses through the specified directory and builds
+	 * a list of files and subdirectories that the directory contains.
+	 * The result of this function can be passed to {@link copyFiles}.
+	 * @param string $sourceDir the source directory
+	 * @param string $targetDir the target directory
+	 * @param string $baseDir base directory
+	 * @param array $ignoreFiles list of the names of files that should
+	 * be ignored in list building process. Argument available since 1.1.11.
+	 * @param array $renameMap hash array of file names that should be
+	 * renamed. Example value: array('1.old.txt'=>'2.new.txt').
+	 * @return array the file list (see {@link copyFiles})
+	 */
+	protected function buildFileList($sourceDir, $targetDir, $baseDir='', $ignoreFiles=array(), $renameMap=array())
+	{
+		$list = array();
+		$handle = opendir($sourceDir);
+		while(($file = readdir($handle)) !== false) {
+			if(in_array($file, array('.', '..', '.svn', '.gitignore')) || in_array($file, $ignoreFiles)) {
+				continue;
+			}
+			$sourcePath = $sourceDir.DIRECTORY_SEPARATOR.$file;
+			$targetPath = $targetDir.DIRECTORY_SEPARATOR.strtr($file, $renameMap);
+			$name = $baseDir === '' ? $file : $baseDir.'/'.$file;
+			$list[$name] = array(
+				'source' => $sourcePath,
+				'target' => $targetPath,
+			);
+			if(is_dir($sourcePath)) {
+				$list = array_merge($list, self::buildFileList($sourcePath, $targetPath, $name, $ignoreFiles, $renameMap));
+			}
+		}
+		closedir($handle);
+		return $list;
+	}
 }
\ No newline at end of file
diff --git a/framework/helpers/base/FileHelper.php b/framework/helpers/base/FileHelper.php
index 7dd5543..5bab36f 100644
--- a/framework/helpers/base/FileHelper.php
+++ b/framework/helpers/base/FileHelper.php
@@ -9,8 +9,7 @@
 
 namespace yii\helpers\base;
 
-use yii\base\Exception;
-use yii\base\InvalidConfigException;
+use Yii;
 
 /**
  * Filesystem helper
@@ -22,35 +21,6 @@ use yii\base\InvalidConfigException;
 class FileHelper
 {
 	/**
-	 * Returns the extension name of a file path.
-	 * For example, the path "path/to/something.php" would return "php".
-	 * @param string $path the file path
-	 * @return string the extension name without the dot character.
-	 */
-	public static function getExtension($path)
-	{
-		return pathinfo($path, PATHINFO_EXTENSION);
-	}
-
-	/**
-	 * Checks the given path and ensures it is a directory.
-	 * This method will call `realpath()` to "normalize" the given path.
-	 * If the given path does not refer to an existing directory, an exception will be thrown.
-	 * @param string $path the given path. This can also be a path alias.
-	 * @return string the normalized path
-	 * @throws InvalidConfigException if the path does not refer to an existing directory.
-	 */
-	public static function ensureDirectory($path)
-	{
-		$p = \Yii::getAlias($path);
-		if (($p = realpath($p)) !== false && is_dir($p)) {
-			return $p;
-		} else {
-			throw new InvalidConfigException('Directory does not exist: ' . $path);
-		}
-	}
-
-	/**
 	 * Normalizes a file/directory path.
 	 * After normalization, the directory separators in the path will be `DIRECTORY_SEPARATOR`,
 	 * and any trailing directory separators will be removed. For example, '/home\demo/' on Linux
@@ -69,17 +39,14 @@ class FileHelper
 	 *
 	 * The searching is based on the specified language code. In particular,
 	 * a file with the same name will be looked for under the subdirectory
-	 * whose name is same as the language code. For example, given the file "path/to/view.php"
-	 * and language code "zh_cn", the localized file will be looked for as
-	 * "path/to/zh_cn/view.php". If the file is not found, the original file
+	 * whose name is the same as the language code. For example, given the file "path/to/view.php"
+	 * and language code "zh_CN", the localized file will be looked for as
+	 * "path/to/zh_CN/view.php". If the file is not found, the original file
 	 * will be returned.
 	 *
 	 * If the target and the source language codes are the same,
 	 * the original file will be returned.
 	 *
-	 * For consistency, it is recommended that the language code is given
-	 * in lower case and in the format of LanguageID_RegionID (e.g. "en_us").
-	 *
 	 * @param string $file the original file
 	 * @param string $language the target language that the file should be localized to.
 	 * If not set, the value of [[\yii\base\Application::language]] will be used.
@@ -91,10 +58,10 @@ class FileHelper
 	public static function localize($file, $language = null, $sourceLanguage = null)
 	{
 		if ($language === null) {
-			$language = \Yii::$app->language;
+			$language = Yii::$app->language;
 		}
 		if ($sourceLanguage === null) {
-			$sourceLanguage = \Yii::$app->sourceLanguage;
+			$sourceLanguage = Yii::$app->sourceLanguage;
 		}
 		if ($language === $sourceLanguage) {
 			return $file;
@@ -120,6 +87,7 @@ class FileHelper
 		if (function_exists('finfo_open')) {
 			$info = finfo_open(FILEINFO_MIME_TYPE, $magicFile);
 			if ($info && ($result = finfo_file($info, $file)) !== false) {
+				finfo_close($info);
 				return $result;
 			}
 		}
@@ -137,138 +105,21 @@ class FileHelper
 	 */
 	public static function getMimeTypeByExtension($file, $magicFile = null)
 	{
+		static $mimeTypes = array();
 		if ($magicFile === null) {
-			$magicFile = \Yii::getAlias('@yii/util/mimeTypes.php');
+			$magicFile = __DIR__ . '/mimeTypes.php';
+		}
+		if (!isset($mimeTypes[$magicFile])) {
+			$mimeTypes[$magicFile] = require($magicFile);
 		}
-		$mimeTypes = require($magicFile);
 		if (($ext = pathinfo($file, PATHINFO_EXTENSION)) !== '') {
 			$ext = strtolower($ext);
-			if (isset($mimeTypes[$ext])) {
-				return $mimeTypes[$ext];
+			if (isset($mimeTypes[$magicFile][$ext])) {
+				return $mimeTypes[$magicFile][$ext];
 			}
 		}
 		return null;
 	}
 
-	/**
-	 * Copies a list of files from one place to another.
-	 * @param array $fileList the list of files to be copied (name=>spec).
-	 * The array keys are names displayed during the copy process, and array values are specifications
-	 * for files to be copied. Each array value must be an array of the following structure:
-	 * <ul>
-	 * <li>source: required, the full path of the file/directory to be copied from</li>
-	 * <li>target: required, the full path of the file/directory to be copied to</li>
-	 * <li>callback: optional, the callback to be invoked when copying a file. The callback function
-	 *   should be declared as follows:
-	 *   <pre>
-	 *   function foo($source,$params)
-	 *   </pre>
-	 *   where $source parameter is the source file path, and the content returned
-	 *   by the function will be saved into the target file.</li>
-	 * <li>params: optional, the parameters to be passed to the callback</li>
-	 * </ul>
-	 * @see buildFileList
-	 */
-	public static function copyFiles($fileList)
-	{
-		$overwriteAll = false;
-		foreach($fileList as $name=>$file) {
-			$source = strtr($file['source'], '/\\', DIRECTORY_SEPARATOR);
-			$target = strtr($file['target'], '/\\', DIRECTORY_SEPARATOR);
-			$callback = isset($file['callback']) ? $file['callback'] : null;
-			$params = isset($file['params']) ? $file['params'] : null;
-
-			if(is_dir($source)) {
-				try {
-					self::ensureDirectory($target);
-				}
-				catch (Exception $e) {
-					mkdir($target, true, 0777);
-				}
-				continue;
-			}
-
-			if($callback !== null) {
-				$content = call_user_func($callback, $source, $params);
-			}
-			else {
-				$content = file_get_contents($source);
-			}
-			if(is_file($target)) {
-				if($content === file_get_contents($target)) {
-					echo "  unchanged $name\n";
-					continue;
-				}
-				if($overwriteAll) {
-					echo "  overwrite $name\n";
-				}
-				else {
-					echo "      exist $name\n";
-					echo "            ...overwrite? [Yes|No|All|Quit] ";
-					$answer = trim(fgets(STDIN));
-					if(!strncasecmp($answer, 'q', 1)) {
-						return;
-					}
-					elseif(!strncasecmp($answer, 'y', 1)) {
-						echo "  overwrite $name\n";
-					}
-					elseif(!strncasecmp($answer, 'a', 1)) {
-						echo "  overwrite $name\n";
-						$overwriteAll = true;
-					}
-					else {
-						echo "       skip $name\n";
-						continue;
-					}
-				}
-			}
-			else {
-				try {
-					self::ensureDirectory(dirname($target));
-				}
-				catch (Exception $e) {
-					mkdir(dirname($target), true, 0777);
-				}
-				echo "   generate $name\n";
-			}
-			file_put_contents($target, $content);
-		}
-	}
 
-	/**
-	 * Builds the file list of a directory.
-	 * This method traverses through the specified directory and builds
-	 * a list of files and subdirectories that the directory contains.
-	 * The result of this function can be passed to {@link copyFiles}.
-	 * @param string $sourceDir the source directory
-	 * @param string $targetDir the target directory
-	 * @param string $baseDir base directory
-	 * @param array $ignoreFiles list of the names of files that should
-	 * be ignored in list building process. Argument available since 1.1.11.
-	 * @param array $renameMap hash array of file names that should be
-	 * renamed. Example value: array('1.old.txt'=>'2.new.txt').
-	 * @return array the file list (see {@link copyFiles})
-	 */
-	public static function buildFileList($sourceDir, $targetDir, $baseDir='', $ignoreFiles=array(), $renameMap=array())
-	{
-		$list = array();
-		$handle = opendir($sourceDir);
-		while(($file = readdir($handle)) !== false) {
-			if(in_array($file, array('.', '..', '.svn', '.gitignore')) || in_array($file, $ignoreFiles)) {
-				continue;
-			}
-			$sourcePath = $sourceDir.DIRECTORY_SEPARATOR.$file;
-			$targetPath = $targetDir.DIRECTORY_SEPARATOR.strtr($file, $renameMap);
-			$name = $baseDir === '' ? $file : $baseDir.'/'.$file;
-			$list[$name] = array(
-				'source' => $sourcePath,
-				'target' => $targetPath,
-			);
-			if(is_dir($sourcePath)) {
-				$list = array_merge($list, self::buildFileList($sourcePath, $targetPath, $name, $ignoreFiles, $renameMap));
-			}
-		}
-		closedir($handle);
-		return $list;
-	}
 }
\ No newline at end of file
diff --git a/framework/validators/FileValidator.php b/framework/validators/FileValidator.php
index c104c05..b3de0b2 100644
--- a/framework/validators/FileValidator.php
+++ b/framework/validators/FileValidator.php
@@ -175,7 +175,7 @@ class FileValidator extends Validator
 				if ($this->minSize !== null && $file->getSize() < $this->minSize) {
 					$this->addError($object, $attribute, $this->tooSmall, array('{file}' => $file->getName(), '{limit}' => $this->minSize));
 				}
-				if (!empty($this->types) && !in_array(strtolower(FileHelper::getExtension($file->getName())), $this->types, true)) {
+				if (!empty($this->types) && !in_array(strtolower(pathinfo($file->getName(), PATHINFO_EXTENSION)), $this->types, true)) {
 					$this->addError($object, $attribute, $this->wrongType, array('{file}' => $file->getName(), '{extensions}' => implode(', ', $this->types)));
 				}
 				break;
diff --git a/framework/web/AssetBundle.php b/framework/web/AssetBundle.php
index 26fbb34..d3e29d8 100644
--- a/framework/web/AssetBundle.php
+++ b/framework/web/AssetBundle.php
@@ -7,6 +7,7 @@
 
 namespace yii\web;
 
+use Yii;
 use yii\base\Object;
 
 /**
@@ -36,18 +37,47 @@ use yii\base\Object;
  */
 class AssetBundle extends Object
 {
+	/**
+	 * @var string the root directory of the asset files. If this is not set,
+	 * the assets are considered to be located under a Web-accessible folder already
+	 * and no asset publishing will be performed.
+	 */
 	public $basePath;
-	public $baseUrl;  // if missing, the bundle will be published to the "www/assets" folder
+	/**
+	 * @var string the base URL that will be prefixed to the asset files.
+	 * This property must be set if [[basePath]] is not set.
+	 * When this property is not set, it will be initialized as the base URL
+	 * that the assets are published to.
+	 */
+	public $baseUrl;
+	/**
+	 * @var array list of JavaScript files that this bundle contains. Each JavaScript file can
+	 * be specified in one of the three formats:
+	 *
+	 * - a relative path: a path relative to [[basePath]] if [[basePath]] is set,
+	 *   or a URL relative to [[baseUrl]] if [[basePath]] is not set;
+	 * - an absolute URL;
+	 * - a path alias that can be resolved into a relative path or an absolute URL.
+	 *
+	 * Note that you should not use backward slashes "\" to specify JavaScript files.
+	 *
+	 * A JavaScript file can be associated with the options: // todo
+	 */
 	public $js = array();
 	public $css = array();
+	/**
+	 * @var array list of the bundle names that this bundle depends on
+	 */
 	public $depends = array();
 
-	public function mapTo($target)
+	public function init()
 	{
-		$this->depends = array($target);
-		$this->js = $this->css = array();
-		$this->basePath = null;
-		$this->baseUrl = null;
+		if ($this->baseUrl !== null) {
+			$this->baseUrl = rtrim(Yii::getAlias($this->baseUrl), '/');
+		}
+		if ($this->basePath !== null) {
+			$this->basePath = rtrim(Yii::getAlias($this->basePath), '/\\');
+		}
 	}
 
 	/**
@@ -59,18 +89,18 @@ class AssetBundle extends Object
 			$content->registerAssetBundle($name);
 		}
 		foreach ($this->js as $js => $options) {
-			if (is_array($options)) {
-				$content->registerJsFile($js, $options);
-			} else {
-				$content->registerJsFile($options);
+			$js = is_string($options) ? $options : $js;
+			if (strpos($js, '//') !== 0 && strpos($js, '://') === false) {
+				$js = $this->baseUrl . '/' . ltrim($js, '/');
 			}
+			$content->registerJsFile($js, is_array($options) ? $options : array());
 		}
 		foreach ($this->css as $css => $options) {
-			if (is_array($options)) {
-				$content->registerCssFile($css, $options);
-			} else {
-				$content->registerCssFile($options);
+			$css = is_string($options) ? $options : $css;
+			if (strpos($css, '//') !== 0 && strpos($css, '://') === false) {
+				$css = $this->baseUrl . '/' . ltrim($css, '/');
 			}
+			$content->registerCssFile($css, is_array($options) ? $options : array());
 		}
 	}
 
@@ -79,8 +109,11 @@ class AssetBundle extends Object
 	 */
 	public function publish($assetManager)
 	{
-		if ($this->basePath !== null && $this->baseUrl === null) {
-			return;
+		if ($this->basePath !== null) {
+			$baseUrl = $assetManager->publish($this->basePath);
+			if ($this->baseUrl === null) {
+				$this->baseUrl = $baseUrl;
+			}
 		}
 	}
 }
\ No newline at end of file
diff --git a/framework/web/AssetManager.php b/framework/web/AssetManager.php
index 4f44f0c..1390f47 100644
--- a/framework/web/AssetManager.php
+++ b/framework/web/AssetManager.php
@@ -26,10 +26,6 @@ class AssetManager extends Component
 	 */
 	public $bundles;
 	/**
-	 * @var
-	 */
-	public $bundleMap;
-	/**
 	 * @return string the root directory storing the published asset files.
 	 */
 	public $basePath = '@wwwroot/assets';
@@ -89,7 +85,7 @@ class AssetManager extends Component
 		} elseif (!is_writable($this->basePath)) {
 			throw new InvalidConfigException("The directory is not writable by the Web process: {$this->basePath}");
 		} else {
-			$this->base = realpath($this->basePath);
+			$this->basePath = realpath($this->basePath);
 		}
 		$this->baseUrl = rtrim(Yii::getAlias($this->baseUrl), '/');
 
@@ -131,18 +127,6 @@ class AssetManager extends Component
 		}
 		/** @var $bundle AssetBundle */
 		$bundle = $this->bundles[$name];
-		if (isset($this->bundleMap[$name]) && is_string($this->bundleMap[$name])) {
-			$target = $this->bundleMap[$name];
-			if (!isset($this->bundles[$target])) {
-				if (isset($this->bundleMap[$target])) {
-					$this->bundles[$target] = $this->bundleMap[$target];
-				} else {
-					throw new InvalidConfigException("Asset bundle '$name' is mapped to an unknown bundle: $target");
-				}
-			}
-			$bundle->mapTo($target);
-			unset($this->bundleMap[$name]);
-		}
 
 		if ($publish) {
 			$bundle->publish($this);
@@ -191,61 +175,56 @@ class AssetManager extends Component
 	{
 		if (isset($this->_published[$path])) {
 			return $this->_published[$path];
-		} else {
-			if (($src = realpath($path)) !== false) {
-				if (is_file($src)) {
-					$dir = $this->hash($hashByName ? basename($src) : dirname($src) . filemtime($src));
-					$fileName = basename($src);
-					$dstDir = $this->getBasePath() . DIRECTORY_SEPARATOR . $dir;
-					$dstFile = $dstDir . DIRECTORY_SEPARATOR . $fileName;
+		}
 
-					if ($this->linkAssets) {
-						if (!is_file($dstFile)) {
-							if (!is_dir($dstDir)) {
-								mkdir($dstDir);
-								@chmod($dstDir, $this->newDirMode);
-							}
-							symlink($src, $dstFile);
-						}
-					} else {
-						if (@filemtime($dstFile) < @filemtime($src)) {
-							if (!is_dir($dstDir)) {
-								mkdir($dstDir);
-								@chmod($dstDir, $this->newDirMode);
-							}
-							copy($src, $dstFile);
-							@chmod($dstFile, $this->newFileMode);
-						}
-					}
+		$src = realpath($path);
+		if ($src === false) {
+			throw new InvalidParamException("The file or directory to be published does not exist: $path");
+		}
+
+		if (is_file($src)) {
+			$dir = $this->hash($hashByName ? basename($src) : dirname($src) . filemtime($src));
+			$fileName = basename($src);
+			$dstDir = $this->basePath . DIRECTORY_SEPARATOR . $dir;
+			$dstFile = $dstDir . DIRECTORY_SEPARATOR . $fileName;
 
-					return $this->_published[$path] = $this->getBaseUrl() . "/$dir/$fileName";
-				} else {
-					if (is_dir($src)) {
-						$dir = $this->hash($hashByName ? basename($src) : $src . filemtime($src));
-						$dstDir = $this->getBasePath() . DIRECTORY_SEPARATOR . $dir;
+			if (!is_dir($dstDir)) {
+				@mkdir($dstDir, $this->newDirMode, true);
+			}
 
-						if ($this->linkAssets) {
-							if (!is_dir($dstDir)) {
-								symlink($src, $dstDir);
-							}
-						} else {
-							if (!is_dir($dstDir) || $forceCopy) {
-								CFileHelper::copyDirectory($src, $dstDir, array(
-									'exclude' => $this->excludeFiles,
-									'level' => $level,
-									'newDirMode' => $this->newDirMode,
-									'newFileMode' => $this->newFileMode,
-								));
-							}
-						}
 
-						return $this->_published[$path] = $this->getBaseUrl() . '/' . $dir;
-					}
+			if ($this->linkAssets) {
+				if (!is_file($dstFile)) {
+					symlink($src, $dstFile);
+				}
+			} elseif (@filemtime($dstFile) < @filemtime($src)) {
+				copy($src, $dstFile);
+				@chmod($dstFile, $this->newFileMode);
+			}
+
+			$url = $this->baseUrl . "/$dir/$fileName";
+		} else {
+			$dir = $this->hash($hashByName ? basename($src) : $src . filemtime($src));
+			$dstDir = $this->basePath . DIRECTORY_SEPARATOR . $dir;
+
+			if ($this->linkAssets) {
+				if (!is_dir($dstDir)) {
+					symlink($src, $dstDir);
+				}
+			} else {
+				if (!is_dir($dstDir) || $forceCopy) {
+					FileHelper::copyDirectory($src, $dstDir, array(
+						'exclude' => $this->excludeFiles,
+						'level' => $level,
+						'newDirMode' => $this->newDirMode,
+						'newFileMode' => $this->newFileMode,
+					));
 				}
 			}
+
+			$url = $this->baseUrl . '/' . $dir;
 		}
-		throw new CException(Yii::t('yii|The asset "{asset}" to be published does not exist.',
-			array('{asset}' => $path)));
+		return $this->_published[$path] = $url;
 	}
 
 	/**
@@ -262,7 +241,7 @@ class AssetManager extends Component
 	public function getPublishedPath($path, $hashByName = false)
 	{
 		if (($path = realpath($path)) !== false) {
-			$base = $this->getBasePath() . DIRECTORY_SEPARATOR;
+			$base = $this->basePath . DIRECTORY_SEPARATOR;
 			if (is_file($path)) {
 				return $base . $this->hash($hashByName ? basename($path) : dirname($path) . filemtime($path)) . DIRECTORY_SEPARATOR . basename($path);
 			} else {
@@ -291,9 +270,9 @@ class AssetManager extends Component
 		}
 		if (($path = realpath($path)) !== false) {
 			if (is_file($path)) {
-				return $this->getBaseUrl() . '/' . $this->hash($hashByName ? basename($path) : dirname($path) . filemtime($path)) . '/' . basename($path);
+				return $this->baseUrl . '/' . $this->hash($hashByName ? basename($path) : dirname($path) . filemtime($path)) . '/' . basename($path);
 			} else {
-				return $this->getBaseUrl() . '/' . $this->hash($hashByName ? basename($path) : $path . filemtime($path));
+				return $this->baseUrl . '/' . $this->hash($hashByName ? basename($path) : $path . filemtime($path));
 			}
 		} else {
 			return false;