win32: on focus restore the window if iconified
win32: on focus restore the window if iconified

If the window is iconified we want to restore the window
to get the proper size instead of showing it normal which
would change the size of the window.

https://bugzilla.gnome.org/show_bug.cgi?id=698652

Distrotech/gtk,Distrotech/gtk,Distrotech/gtk,Distrotech/gtk,Distrotech/gtk