tests improved

docs added

better not delete all to avoid data loss

pr #2324

Conflicts:
	extensions/yii/elasticsearch/CHANGELOG.md

Fix typo

Update FixtureController.php

typo fix

1904 modal generator autocomplete fix

minor fixes

The scripts in asset bundles are now registered in `View` at the end of `endBody()`. It was done in `endPage()` previously

toolbar UI updates

Revert "Added `yii\base\Module::getParam($name, $defaultValue = null)`  to conveniently work with application parameters"

This reverts commit 3b95aa9c.