Do not crash if the chatroom's account has no connection. Fixes bug #550652.
Do not crash if the chatroom's account has no connection. Fixes bug #550652.

svn path=/trunk/; revision=1471

GNOME/telepathy-account-widgets,Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets,GNOME/telepathy-account-widgets,Distrotech/telepathy-account-widgets