daemon: Fix leak in process_config_entries
daemon: Fix leak in process_config_entries

The object returned by g_dbus_object_manager_get_object() must be
unref'ed when no longer needed.

https://bugzilla.gnome.org/show_bug.cgi?id=752939

felipeborges/gnome-online-accounts,ritzk/gnome-online-accounts,felipeborges/gnome-online-accounts,felipeborges/gnome-online-accounts,ritzk/gnome-online-accounts,ritzk/gnome-online-accounts