Adapt nbxmpp handler registration

gajim/common/client.py

@@ -374,7 +374,7 @@ def change_status(self, show, msg, auto=False):
 
     def _register_new_handlers(self):
         for handler in modules.get_handlers(self):
-            self._client.register_handler(*handler)
+            self._client.register_handler(handler)
         self.handlers_registered = True
 
     def get_module(self, name):

gajim/plugins/pluginmanager.py

@@ -412,7 +412,7 @@ def _register_modules_with_handlers(self, plugin):
                 # in connection_handlers._register_handlers()
                 if con.handlers_registered:
                     for handler in instance.handlers:
-                        con.connection.register_handler(*handler)
+                        con.connection.register_handler(handler)
 
     def _unregister_modules_with_handlers(self, plugin):
         if not hasattr(plugin, 'modules'):
@@ -428,7 +428,7 @@ def _unregister_modules_with_handlers(self, plugin):
                     for handler in instance.handlers:
                         if len(handler) > 4:
                             handler = handler[:4]
-                        con.connection.unregister_handler(*handler)
+                        con.connection.unregister_handler(handler)
 
     def activate_plugin(self, plugin):
         '''