Update for rustc
Pass a "CommandContext" object to commands instead of parameters
Merge pull request #77 from tomaka/use-ctxt

Pass a "CommandContext" object to commands instead of parameters
Minor fixes for later-on OpenGL ES support
Merge pull request #78 from tomaka/opengles-fixes

Minor fixes for later-on OpenGL ES support
Add a `gl_extensions` feature to enable GL-only functions
Merge pull request #79 from tomaka/opengles-support

Add a `gl_extensions` feature to enable GL-only functions
Fix misc. warnings
Add gles_extensions feature
Add capabilities struct
Update for rustc
Calling glViewport at initialization
Merge pull request #81 from tomaka/call-gl-viewport

Calling glViewport at initialization
Fix for index buffers
Add PixelValue implementations for Luma/LumaA
Update for rustc
Add some files to .gitignore
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