Process key and mouse events on SDL2
Added SDL2 software renderer support
Add toggling of fullscreen for SDL2
Add support for hiding and showing mouse cursor with SDL2
Support Capabilities screen size and supported screen resolutions on SDL2 for first display
Try setting GL attributes in SDL2 stage
Default to SDL2 on Mac
Clean SDL2 exit
Almost have SDL2 linking statically on Windows
Adding mouse wheel events, sent as a mouse down event mimmicking previous version of nme, value 3 and 4 as value.
Merge branch 'master' of https://github.com/haxenme/NME