iOS: Rewrite dw_window_redraw() so it actually works. The existing code essentially did nothing, it just set the redraw and shown state without actually doing anything. This new code works and Interface Builder now displays correctly without needing to rotate the tablet.

[Desktop Entry]
Name=Dynamic Windows Test
Exec=@prefix@/bin/dwtest 
Terminal=false
MultipleArgs=false
Type=Application
Categories=Application;Development;X-Red-Hat-Base;