Adding CORS filter to allow Cross origin resource Sharing
Adding enhancement CORS
Move methods
Fix changelog
Merge branch 'master' into feature/CORS
Allow the user to override the request like in RateLimiter
Fix multiple headers management in Access-Control-Request-Headers
Allow the user to remove field by nulling it's value. Usefull for Access-Control-Max-Age
Remove static functions
Adding CORS documentation
Fix link
Move CORS documentation from REST to Structure
Fix unused var
Edited; very clean!
Fixes #4296: added doc about using blocks in views. [skip ci]
Merge branch 'master' of git://github.com/yiisoft/yii2
Fixes #4299
Added note about logger component in bootstrap

fixes #4301
typo
phpdoc