Removed unused methods.
cleaned up "use" statements.
renamed Application::handle() to handelRequest()

Name make more sense imo as it is not clear what it handles otherwise.
Removed unused method processRequest form console app and also refactored
console Application to be more similar to web Application.
removed unnecessary check
Merge pull request #538 from cebe/handle-request

renamed Application::handle() to handelRequest()
Added doc.
Merge branch 'master' of github.com:yiisoft/yii2
Added XmlResponseFormatter.
Fixes issue #539: Yii2 Csrf protection broken
Fixed test break.
Fixed test break.
Fixed test break.
Added public.
added missing view property to PageCache

fixes #544
static instead of self for creating instances

in UploadedFile::loadFilesRecursive
fixes #542
Renamed view to getView().
draft idea of action based responses
doc clarification.
Renamed some folders to fit changed app structure.
implementation of Response tied to actions

Result of a discussion with @qiangxue
- there is not global Yii::$app->response anymore, every action has
  dedicated response class
- implementation allows using HMVC pattern now, nested actions do not
  interfer