Fix weird duplicate key bug
Fix weird duplicate key bug

The call to KeyPress on the window's OnKeyUp was intended to take care of
the case where there was no focus.  I didn't take into account the fact that
OnKeyUp doesn't have a way to consume an event, though, so most commands
were called twice for each key stroke.  This was especially bad with the
cut command and made the issue obvious.

nelsam/gxui_playground,Kvaz1r/vidar,nelsam/vidar