Adding soft deleting trait alias.

app/config/app.php

@@ -167,6 +167,7 @@ return array(
 		'Schema'          => 'Illuminate\Support\Facades\Schema',
 		'Seeder'          => 'Illuminate\Database\Seeder',
 		'Session'         => 'Illuminate\Support\Facades\Session',
+		'SoftDeletingTrait' => 'Illuminate\Database\Eloquent\SoftDeletingTrait',
 		'SSH'             => 'Illuminate\Support\Facades\SSH',
 		'Str'             => 'Illuminate\Support\Str',
 		'URL'             => 'Illuminate\Support\Facades\URL',