contact_widget_contact_update: don't call contact_widget_favourites_changed_cb if favorite support is disabled
contact_widget_contact_update: don't call contact_widget_favourites_changed_cb if favorite support is disabled

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