Merge pull request laravel#298 from gdsrmygdsrjr/patch-1

Fix undefined variable: queryCallback

Merge pull request laravel#295 from Hoglan/patch-1

Update NullEngine.php: add missing Builder parameter

formatting

allow query callback

wip

Merge pull request laravel#269 from Julien-Bunel/4.0

Adding the Eloquent SoftDeletes class to Searchable trait

formatting

Merge pull request laravel#264 from arjanwestdorp/4.0

Sync conditional models

Merge branch '3.0'

handle force deleted event