Add missing include

Needed for EMPATHY_LOCATION_*.

Signed-off-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>

https://bugzilla.gnome.org/show_bug.cgi?id=706125
Set a title to password dialogs

Signed-off-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>

https://bugzilla.gnome.org/show_bug.cgi?id=706125