Shaders now compile on Linux, but don't display textures.
Fixed delta time calculation bug on linux.
Textures now work, but geometry has holes, and depth isn't working.
Depth testing is fixed within objects, but drawing order isn't working still.
Had to add GLUT_DEPTH to glutInitDisplayMode for proper object depth ordering.
Added new stuff to gitignore.
Merge pull request #2 from Benjins/linux

Linux