fallback to JID if alias is empty
fallback to JID if alias is empty

if the alias is empty, contact_get_name should fallback to the jabber id. this fixes bug #614162

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