accounts_dialog_button_create_clicked_cb: if, for some reason, mc_account_create failed, early return instead of crashing
accounts_dialog_button_create_clicked_cb: if, for some reason, mc_account_create failed, early return instead of crashing

From: Guillaume Desmottes <gdesmott@gnome.org>

svn path=/trunk/; revision=2256

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