Make EmpathyImportDialog a singleton. (Jonny Lamb)
Make EmpathyImportDialog a singleton. (Jonny Lamb)

Signed-off-by: Jonny Lamb <jonny.lamb@collabora.co.uk>

svn path=/trunk/; revision=1602

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