Simon Weber	anything not specified by other authors
David Dooling compatibility updates in protocol.py
Kevin Kwok	metadata_pb2.py; upload_mp3s code in api.py derived from his work
Darryl Pogue	PlaySession simplifications in api.py; .gitignore; tokenauth.py; clientlogin.py
mystilleef	change to relative imports in api.py and protocol.py
Ryan Hsu 	slimmed down to_camel_case function in utils/utils.py
