Merge pull request #3 from jsimozar/master

Piano widget and documentation
Merge pull request #4 from jsimozar/master

fixed piano key sizes, added and changed documentation
fix for remotely setting multislider values
Merge branch 'master' of github.com:charlieroberts/interface.js
fixes for accelerometer/gyro. global widgets object
updated index, updated documentation, updated piano
Merge remote-tracking branch 'upstream/master'