Lithuanian translation
Fix #3265

Adding a new additional validation rule in the gii-crud generator enforcing the expected format.
Update CHANGELOG.md
Fixed regex-escaping in crudgenerator
guide wip [skip ci]
Merge branch 'master' of git://github.com/yiisoft/yii2
minor improvement to doc. [skip ci]
Only valid php classes should pass validation
events guide wip [skip ci]
Fixes #3183: fixed regression after #3175
Merge pull request #3293 from suralc/patch-4

Fix #3265
Fixes #3179: removed duplicate validation rules from User model in advanced app, removed User::create()
Added support to insert an event handler at the beginning of class-level event handler queue
Finished event guide. [skip ci]
#2677: added 1.1 port of translations command
Added docs about translation command
Fixed wording in upgrade guide
Changed suggested naming for guide translations to use -
Fixed arguments order in RBAC guide
added docs about array attributes to the guide

fixes #3302