Fix for mobile devices using deprecated noteOn.
Fix: PID 20399371 19668483 24897457 Issue
https://github.com/WPFerg/scratch-html5/issues/12
https://github.com/WPFerg/scratch-html5/issues/9
https://github.com/WPFerg/scratch-html5/issues/3
Merging #87 Audio API update - fix disconnect/sound stopping