added github equivalent  /repos/:repo_key/tags API (#50)
fix minor issue introduced by d99d9c2
added non-github api for retrieving tag by name /repos/{repo_key}/tags/{tag_name} (#59)
add support for retrieving .diff (#56)
be consistent with API urls rather than random github endpoint (also like /compare/ when we implement it)
fix a bunch of test :)
make pep8 happy
add reference output: wget'd https://github.com/hulu/restfulgit/commit/d408fc2428bc6444cabd7f7b46edbe70b6992b16.diff
add test for /commits/SHA.diff endpoint
add test of repo info endpoint's default description detection
add test for /repos/:repo_key/tags
add test for /repos/:repo_key/branches
corrections to _convert_branch() to match GitHub's format
add stub /repos/:repo_key/contents/:path impl
add get_repo_branch() test and make it pass
add test for get_repo_commit()
kill maxDiff overrides leftover from debugging
add test for get_repos_tag()
add tests for error cases for new APIs
convert a couple of list comprehensions to generator expressions