add the Build.info property
raise HTTPError on non-200 http exit codes
docstring fixes
add 'Build' to __all__
add Build.wait() and the Build.building property
add last_build, last_successful_build and last_stable_build
add auto-generated apidoc
add test and coverage targets
Make Job.exists() into the Job.exists property
do not shadow HTTPError when retrieving json
bump version to 0.2.0
bump license year