changes as per list

removed dummy code, remove mic mute state at startup, some text changes.
added comments to explain hand state
clean up code

intentations lines 263 264
Merge pull request #3988 from ZappoMan/addComments

added comments to explain hand state
Merge pull request #3985 from Adrianl3d/20221

changes as per list
Merge branch 'master' of https://github.com/highfidelity/hifi into model