Always remove invites from the frame

Conflicts:

	NEWS

shell/model/Invites.py

@@ -15,6 +15,7 @@
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 import gobject
+from sugar.presence import presenceservice
 
 class Invite:
     def __init__(self, issuer, bundle_id, activity_id):
@@ -41,6 +42,10 @@ class Invites(gobject.GObject):
 
         self._dict = {}
 
+        ps = presenceservice.get_instance()
+        owner = ps.get_owner()
+        owner.connect('joined-activity', self._owner_joined_cb)
+
     def add_invite(self, issuer, bundle_id, activity_id):
         if activity_id in self._dict:
             # there is no point to add more than one time
@@ -60,5 +65,8 @@ class Invites(gobject.GObject):
         if invite is not None:
             self.remove_invite(invite)
 
+    def _owner_joined_cb(self, owner, activity):
+        self.remove_activity(activity.props.id)
+
     def __iter__(self):
         return self._dict.values().__iter__()