add support for head-shadow/penumbra filter for positional audio streams
Merge remote-tracking branch 'upstream/master'
minor cleanup of playSoundOrbit.js + playSound.js
windows/linux build break + addresses zappoman review comments
addresses more coding-standard spacing issues
Merge pull request #3316 from chansensturm/master

add support for head-shadow/penumbra filter for positional audio streams