fix warnings in overlays
coding standard cleanup, fix warning
added debugging of usecTimestampNow() in octree server to better understand flight times
Merge branch 'master' of https://github.com/highfidelity/hifi into flightTimeDebugging
Merge branch 'master' of https://github.com/highfidelity/hifi into flightTimeDebugging
Merge pull request #3807 from ZappoMan/flightTimeDebugging

Flight time debugging