Fixes #3052: Fixed the issue that cache dependency data is not reused when `reusable` is set true
Update authorization.md

RBAC Rule small fix
Merge pull request #3058 from armab/patch-1

Update authorization.md
Refactored app bootstrap logic.
fixed file PHPdoc

issue #3026
Merge branch 'master' of github.com:yiisoft/yii2

* 'master' of github.com:yiisoft/yii2: (79 commits)
  Refactored app bootstrap logic.
  Update authorization.md
  Fixes #3052: Fixed the issue that cache dependency data is not reused when `reusable` is set true
  start debug logging only if debug runs when bootstrap.
  Update finnish translation
  Add ODBC support to yii\db\Connection
  updated error handler and requirement checker links.
  fixed broken API links [skip ci]
  added more doc [skip ci]
  update class map.
  Fixes #2034: Added `ContentNegotiator` to support response format and language negotiation
  renamed attributes to attributeNames in model
  updated phpdoc
  Removed `Application::preload` in favor of `Application::bootstrap`
  Update module-debug.md
  Update model.md
  Fixes
  Update basics.md
  typo fix [skip ci]
  Added `HtmlResponseFormatter` and `JsonResponseFormatter`
  ...
Most trivial edit
Bulgarian translation
Some docs on GridView
Merge pull request #3060 from avladev/lang_bg

Bulgarian translation
Looks like GridView has its own section... :)

added a hint and link
Update data-overview.md
typo
added docs about gridview filtering
Issue #3029: Implement ActiveForm and ActiveField
Update data-grid.md
add guide about filtering and sorting related columns

fixes #1581 and #3013
added not about joinWith background
allow . in input name
Merge pull request #3061 from yiisoft/grid-view-relations

add guide about filtering and sorting related columns