Fixes #1586: `QueryBuilder::buildLikeCondition()` will now escape special characters and use percentage characters by default

Fixes #1681: Added support for automatically adjusting the "for" attribute of label generated by `ActiveField::label()`

Fixes #1654: Fixed the issue that a new message source object is generated for every new message being translated

The signature for `yii\gridview\ActionColumn::urlCreator` is changed - the `$action` parameter is moved to the first