working on audio mixer muting
Merge branch 'master' of https://github.com/worklist/hifi
see yourself before/after moving
Merge branch 'master' of https://github.com/worklist/hifi
Merge branch 'master' of https://github.com/worklist/hifi
Merge branch 'master' of https://github.com/worklist/hifi
Merge branch 'master' of https://github.com/worklist/hifi
Merge branch 'master' of https://github.com/worklist/hifi
Merge branch 'master' of https://github.com/worklist/hifi
first pass audio mixer automatic muting of noisy streams,  tour guide improvements,  new lightExample.js, hair hangs over cone 'body'
fix bad spaces
updated header
merge fix
add new birdSongs.js
Merge pull request #3747 from PhilipRosedale/master

First pass audio mixer muting, improved tour guide, hair, injector loudness in JS