Trying to fix up merge with master
Experimented with music block colour and some bug fixes.
Merge branch 'master' into 318_music_blocks

Conflicts:
	dist/javascript.css
	dist/javascript_runtime.js
	languages/javascript/voice.css
Fixed Breakout sounds and added play for x seconds block
Merged voice update with current master
Merge pull request #382 from apepers/master

Music fixes