first cut at new voxel scene stats
Merge branch 'master' of https://github.com/worklist/hifi into new_voxel_scene_stats

Conflicts:
	interface/src/Application.cpp
merge conflict fix
more potential fixes for voxel server crashes
Merge pull request #1196 from Forceflow/master

Glibc Linux compilation fix
Merge pull request #1195 from ZappoMan/bugfixes

more potential fixes for voxel server crashes
debbugging for node shutdown in VS
Merge pull request #1197 from ZappoMan/bugfixes

debbugging for node shutdown in VS
small tweak in debug out
an actual patch for two finger mouselook fail after dialog
only send fake event to the OGLWidget
Merge pull request #1199 from birarda/master

an actual patch for two finger mouselook fail after dialog
lock our node while using it to prevent crash on domain shutdown
Merge pull request #1203 from ZappoMan/bugfixes

Potential fix to VS crash on domain server shutdown
implement ReadWriteLock for VoxelTree to fix crashes in VoxelServer
Merge pull request #1205 from ZappoMan/bugfixes

implement ReadWriteLock for VoxelTree to fix crashes in VoxelServer
New IK method: will be easier to add constraints, adds "gravity" influence to
sap potential energy.
Cleanup on aisle 3.
Active the hand when we have leap hand data.
added debugging to JurisdictionMap for server crashes