ERP5/TemplateTool: Do not update catalog unless for dependencies

   the update_catalog parameter is explicity destinated to the entries
   on the template_list, never to its dependencies.

   The side effect is that reindexation is trigger to the whole list of
   business templates in the site.

product/ERP5/Tool/TemplateTool.py

@@ -1256,7 +1256,10 @@ class TemplateTool (BaseTool):
         bt_url = '%s/%s' % (repository, bt_id)
         param_dict = dict(download_url=bt_url,
                           only_different=only_different, 
-                          reinstall=force_all)
+                          reinstall=force_all,
+                          update_catalog=False)
+
+        if bt_id in template_list:
           param_dict["update_catalog"] = update_catalog
 
         if activate: