placeListRow: Add type property

https://bugzilla.gnome.org/show_bug.cgi?id=739036
Replace GtkEntryCompletion with SearchPopup

https://bugzilla.gnome.org/show_bug.cgi?id=739036
geocodeService: Add support for cancellable

https://bugzilla.gnome.org/show_bug.cgi?id=739036