Update for language changes
Merge pull request #53 from brson/master

Update for language changes
str::from_bytes is now str::from_utf8
Merge pull request #54 from brson/master

str::from_bytes is now str::from_utf8
Merge branch 'master' of git://github.com/mozilla-servo/rust-opengles into HEAD

Conflicts:
	gl2.rs