Update for glutin
Add some benches and run them on travis
Merge pull request #84 from tomaka/benches

Add some benches and run them on travis
Tweak benches to use synchronize() instead of reading front buffer
Merge pull request #85 from tomaka/benches

Tweak benches to use synchronize() instead of reading front buffer
Update README to add glium_macros
Context creation now check that the GL context is compatible with glium