Update README.md
Use gl-rs's GLX bindings for x11
Merge pull request #54 from tomaka/use-glx-glrs

Use gl-rs's GLX bindings for x11
Temporary fix to outdated rust-core-foundation
Revert temporary fix for rust-core-foundation
Merge pull request #55 from tomaka/put-back-dependency

Revert temporary fix for rust-core-foundation
Update for gl-rs
Update for rustc and gl-rs
Merge pull request #59 from tomaka/update

Update for rustc and gl-rs