[PUSHED] Mirroring gtk buttons

[Caolán McNamara]

On Fri, 2013-08-30 at 05:41 +0200, Khaled Hosny wrote:
> Seems to work fine :), even file a print dialogs now have the proper
> direction

Ah yes, I forgot the old hack that this new hack was based on, so I
pushed this stuff now and removed the old file dialog hack which
shouldn't be needed anymore. Keep an eye out for any crashes in
edge-case startup scenarios with this stuff in place.

C.