Fixes #4938: When `yii\db\ActiveQuery` is used to build sub-queries, its WHERE clause is not correctly generated

Fixes #5001: `yii\rest\CreateAction`, `yii\rest\UpdateAction` and `yii\rest\DeleteAction` should throw 500 error if the model operation returns false without validation errors

Typo in concept-behaviors.md

The method 'bar()' does not exist in this context. I believe it should be 'foo().'

Additional fixes for #4993

[ci skip] Update docs for CheckboxColumn::$checkboxOptions

Adv template `aliases.php` => `bootstrap.php` (common + specific for apps)

Update polish translation [skip ci]

fix authchoice.js

close #4487

close #4505

fixes #4452, close #4452

This fix ensures the format configured in the formatter class is used in the message instead
of the default ICU format.

fixes #4960

Handling $query->joinWith called inside of other $query->joinWith within Closure (called inside Closure). Ex.: ```php $query->joinWith( [ 'rel1' => function($query) { $query->joinWith( [ 'rel2' => function($query) { // ... } ] ); } ] ); ```

Updated phpdoc for \yii\widgets\DetailView [ckip ci]

This widget usage is not only restricted with `Model` or associative array (see its `normalizeAttributes()` method)

typod

[WIP] formatter refactored

* master: (22 commits)
  Fixes #4971: Fixed hardcoded table names in `viaTable` expression in model generator
  Fixed test break.
  Fixes #4955: Replaced callbacks with events for `ActiveForm`
  Fix brackets
  Rename `\yii\web\User` component param for consistency
  Html::button() type is `button` by default
  Fix bug in Estonian translation
  Typo fixed inside \yii\rest\CreateAction
  Fixed test break.
  Fixed test case.
  note about validation rules order
  Return a fixtures cleanup in case of a failing test
  Update finnish translation
  skip fixture controller test on HHVM
  Make unit tests cleanup a DB after finish
  Fixes #4945: Added `yii\test\ArrayFixture`
  added array fixture class
  minor doc adjustment [skip ci]
  Fixes #4948. Thanks, @johan162
  Fixes #4947
  ...

Conflicts:
	framework/UPGRADE.md