Fixing bug that caused page to display "sequence" when clicking anywhere but a button

* Also fixing event error when clicking a note button (event was not being passed to toggleNote)
Merge pull request #7 from artfoundry/heroku

Heroku
Merge pull request #8 from artfoundry/click-off-button-bug

Click off button bug
Fixing 404 errors regarding unable to find piano js files

* Changed soundfont url to ./assets/soundfont from ./soundfont (duh)
* Also added some playback images to be used later
* Disabled assets.debug mode in developer config
Merge pull request #9 from artfoundry/404error-fix

Fixing 404 errors regarding unable to find piano js files
Adding multiple instruments and channels

* 14 instrument files added to soundfont
* Now able to control instrument with buttons
* Now able to control output channel with buttons (for future use with multiple users, ie. multiple instruments playing simultaneously)
* Modified note highlighting so actual played note is highlighted
Merge pull request #10 from artfoundry/multiple-instruments

Adding multiple instruments and channels
precompiling for heroku