FEATURE #1753: remove pingpong/modules and use custom solution

app/Models/Module.php

@@ -9,7 +9,6 @@ use Illuminate\Database\Eloquent\Model;
  */
 class Module extends Model
 {
-    use ModelTraits\Module;
     public $timestamps = false;
     protected $fillable = [
         'handler',
@@ -23,4 +22,9 @@ class Module extends Model
         'manages_content',
         'is_template'
     ];
+    protected $casts = [
+        'module_settings' => 'array',
+        'is_template'     => 'boolean',
+        'has_submodules'  => 'boolean'
+    ];
 }