Fix grid controls not updateable
Fix snapToGrid checkbox not working
Add snapToSpacing functionality
Set snapToGrid to default to false
Improve performance of drawing GridOverlay3D
Update ToolWindow to auto-hide itself when main window loses focus
tweaks to sound behavior
use move sounds for turning until further research and foley work
Merge branch 'master' of https://github.com/highfidelity/hifi into movables
Merge pull request #3818 from samcake/temp0

Introduce the Stereo optimization for occulus rendering path
Merge pull request #3820 from huffman/grid-updates

Grid tool updates + fixes
connect to sandbox domain by default
Merge pull request #3822 from birarda/master

restore default domain for clean app launch
Merge pull request #3821 from ZappoMan/movables

More work on the movable.js script
Fix singleton object created on temporary thread
cleanup time in log prefix
fix comment for actual time format
Merge pull request #3824 from Atlante45/fix_ac_deadlock

Fix singleton object created on temporary thread
AC ambiance script / moved AC scripts to new directory
Merge pull request #3823 from birarda/master

cleanup time in log prefix