Mac now automatically remaps keys and modifies the incoming string to reflect it
automatically converts:
Ctrl -> Cmd
Alt -> Option
if you absolutely need a specific set on macos you will still need to check the platform in script and set the required key otherwise this will allow menus to be built with just providing the windows key or the mac key and it will display correclty for the platform.
* Explicitly request a GL 3.2 context
* Enable 'experimental' extensions on glew (This appears necessary to get glew to work with explictly set GL versions)
