Initial commit
Add Init() and OpenWindow()
Add Terminate(), OpenWindowHint(), CloseWindow()
Add SetWindowTitle(), GetWindowParam(), SwapBuffers()
Add SetWindowCloseCallback()
Add SetWindowSizeCallback()
Normalize line endings with .gitattributes
Add PollEvents(), GetKey(), and SetKeyCallback()
Add Char, MouseButton, Pos, and Wheel callbacks
Add callbacks test
Replace Int32 type with Cint

This breaks compatibility with Julia v0.1.
Tidy whitespace
Add explicit "return" statement
Call Terminate() at end of callbacks test
Initial commit of GL package
gl: Add enough functions to draw cube
gl: Apply projection matrix
Add camera translation
Add additional input and misc functions
Merge branch 'master' into wip-gl