Started refactorying cowbell example to use echonest.audio module.
Added copy of original Audio.py for reference.  Cowbell example *should* work, but haven't yet tested.
Cowbell example works.  Starting in on reverse example.
Lots of hackery to get examples/reverse/reverse.py working.  Much refactoring left to do, but both cowbell and reverse examples are working now.
Updated audio.py comments.
New URLs for the API.
Added a basic readme file.
Added more installation notes.
Cowbell example fixes: mono MP3 fix, normalize loudness of input to samples. Updated version of pymad with an eliminated memory leak.
Added AudioFile.audiodata attribute: presumed omission.
Conservative change: added AudioSegment, inheriting from AudioQuantum
Added fullSegmentsParser(), which uses all the data in get_segments, and
saves all data into AudioSegment.
More radical change: insert fullSegmentsParser() into AudioFile's 
list of parsers.
Introduced AudioQuantumList as our extension of list type:
 - has 'that' method, which allows for content-based AudioQuantum selection.
 - replaces output type in data- and attributeParser.
Undo change introduced in r15. Sometimes I'm an idiot.
Added selection.py with simple content-based selection functions.
Added examples/selection/, which demonstrates AudioQuantumList.that()
Deleted pesky .pyc from repository.
Replace mp3 with a copy from within the repos.
updating doc that .save always writes a wav to avoid confusion
Deleted unnecessary audio.identity() helper function.
changed name of all() helper method to all_of()
copied in filters previously only in examples/selection/tonic.py
ExistingTrack class in audio that just takes a trackID