Merge pull request #8 from rossnanop/master

Minor final changes.
Added in basic files
Fixed the midi ouput
Now following more conventions
You can now look up notes and get the MIDI value.
The composer now gets the note lengths from the Notes
merge
Stylistic changes
Now collects relevant info using song IDs from The Echo Nest
Added in comments
Now collecting data on sections
Merge pull request #9 from sfleckenstein/working

Working
Simplified a lot in the DataCollector.