bug fixes in setFullscreen() and setEnableVRMode()
added similarStrings() helper
first cut at HMD Tools dialog
fix bug in resetSensors moving cursor to center of window on multiple screen systems
more improvements to HMD Tools
Merge branch 'master' of https://github.com/highfidelity/hifi into HMDMode
make HMD tools a checkable menu
added a comment to clarify why getCameraOrientation has an oculus special case
removed some debug, added a resetSensors() on exit of HMD mode
fix broken camera after leaving oculus/hmd mode
expand comment
don't delete the HMDToolsDialog on hide, keep it around till app exit.
add debug details to HMDTools
better mirrored monitor support
snap cursor to center of HMD tools dialog when shown, or app when the dialog is hidden
fix crash in activateWindowAfterEnterMode in no oculus case
prevent HMD tools from being moved to HMD screen
improve how cameras are reset when leaving vr mode
fix bug where audio meter is incorrectly offset when in oculus mode
Merge pull request #3868 from ZappoMan/HMDMode

First cut at HMD Tools window