got SDL2 buildbuilding and implemented Mouse with SDL2
more SDL porting
more SDL porting stuff
added mouse buttons X1 and X2
ported InputManager and cleaned up window a bit
got it building...
fixed travis.yml
added error checking in window initilization
rendering now happens on main thread
fixed window resize bug
commented out lua for testing and cleaned some stuff up
error when using unimplemented Mouse::getPosition on OS X
replaced sf::Drawable with Purity::Drawable
now uses purity::rendertarget
added vertexarray
why doesnt this work?
got stuff drawing..kinda
travis-ci now doesnt do intree build
fixed last commit
some minor style cleanup