new strings in gtk

[Matthias Clasen <matthias clasen gmail com>]

Hi, after the GTK+ 3.14 release, I pushed a few patches to improve the
inspector. One of these added a few new strings:

https://git.gnome.org/browse/gtk+/commit/?id=eb96a7f832de014f570d31bd076ee939d9b28b0d

These are purely for GtkInspector and will not show up in application
UI, so you can safely ignore them. Or translate them!

Thanks, and sorry for forgetting to announce this