* master: (27 commits)
form wip
form wip
form WIP
script WIP
Minor change about twig alias.
Added Controller::populate().
Added bootstrap. form WIP
form wip
form wip
Refactored UrlManager.
refactored AccessControl
activeform WIP
Removed the $value parameter from radio and checkbox.
Support alternative URL rule syntax.
Support default standard component class.
updated view renderers docs
activeform wip
Refactored view renderers.
updated view renderers docs
refactoring activeform.
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