phpdoc
phpdoc fixes
fixed recursive call of ArrayHelper::toArray()
fixed private / self in helpers

fixes #2886
fixed undefined variable problem in AccessControl
fixed wrong method calls in elasticsearch Command
Fixes #2880: filterByModels() should prefix key columns in a join query.
Merge branch 'master' of git://github.com/yiisoft/yii2
added TODO message
cleanup redis AR
added missing constructor call
Fixed test break.
renamed console controller optoins param $id to $actionId
fixed FileHelper private method static call
fixed potential problem with MessageFormatter and broken messages
Use correct files array to allow inheritence
Adding changelog for UploadedFile upgrade
properly quote table names for join().
Merge branch 'master' of git://github.com/yiisoft/yii2
Fixed activequery select issue.