tweak MIDI disble (import MidiMsg for MidiFileIn even if MIDI is disabled)

git-svn-id: https://chuck-dev.stanford.edu/svn/chuck/trunk@460 82eca963-f7bb-46ef-a7c9-596d6f444fd3
gitignore
gitignore
authors file
Merge branch 'master' of https://github.com/spencersalazar/chuck