Replace proc() with move ||
Don't derive Copy for bitflags

The bitflags! macro now includes #[deriving(Copy)] by default.
Merge pull request #231 from Gekkio/latest-nightly-2014-12-15

Fix compilation with latest nightly (2014-12-15)
Bumped version number
Merge remote-tracking branch 'upstream/master' into sys

Conflicts:
	src/sdl2/audio.rs
	src/sdl2/render.rs