Revamp the bindings, bringing them closer to current idioms and simplifying things
Merge branch 'revamp' of git://github.com/z0w0/rust-sdl into z0w0-revamp

Conflicts:
	audio.rs
	conversions.rs
	keyboard.rs
	sdl.rs
	src/mixer.rs
	test.rs
	video.rs
Updated version in pkg, updated readme to reflect the lack of tests