Allows ordering of component groups. Closes #573.

app/Models/ComponentGroup.php

@@ -19,6 +19,7 @@ use Watson\Validating\ValidatingTrait;
 /**
  * @property int            $id
  * @property string         $name
+ * @property int            $order
  * @property \Carbon\Carbon $created_at
  * @property \Carbon\Carbon $updated_at
  * @property \Carbon\Carbon $deleted_at
@@ -41,7 +42,7 @@ class ComponentGroup extends Model
      *
      * @var string[]
      */
-    protected $fillable = ['name'];
+    protected $fillable = ['name', 'order'];
 
     /**
      * A group can have many components.