feat (export): cleaned-up exported wsconfig entities

Now when wsconfig entities are exported, they won't include the wsconfig_type and connector which should be loaded from the wsconfig type
and won't include the created and changed dates since those just mess with the feature status.

modules/wsconfig/wsconfig.entity.inc

@@ -281,6 +281,14 @@ class WsConfigController extends EntityAPIControllerExportable {
 
     return $content;
   }
+
+  public function export($entity, $prefix = '') {
+    unset($entity->wsconfig_type);
+    unset($entity->connector);
+    unset($entity->created);
+    unset($entity->changed);
+    return parent::export($entity, $prefix);
+  }
 }
 
 /**