This pull request adds support for references, as mentioned in issue #73. I added support for all 5 operations (test cases, fixtures and docs included).
add Octokit.refs module, test cases and fixtures
add Octokit.ref, which fetches a given ref from a given repo; added m…
…ethod, fixtures and specs
add reference alias to ref
add Octokit.create_ref method, fixtures and specs
fix docs on the create_ref method
add Octokit.update_ref method, fixtures and specs
fix docs for Octokit.ref
add Octokit.delete_ref method and specs
add alias for create, update and delete
Nicely done! Thanks for the patch. Will release a new version shortly.