EntityItem::setSimulationState() now public
add EntitySimulation and SimpleEntitySimulation
EntitySimulation takes EntityItem* rather than ID
EntityServer gets a simuation
EntityCollisionSystem moves to interface

and interface connects EntityCollision system to EntityTree
EntityTreeHeadlessViewer gets a simulation
merge upstream/master into andrew/thermonuclear
add entities to simulation after unpacking
remove Entities developer menu items from C++ menu, make them available through script
fixes the stutter in animation when observer moves
Hack for avoiding lightmaps loading in starchamber
Merge pull request #3877 from samcake/fbx

Hack for avoiding lightmaps loading in starchamber
have the domain-server write its local port into shared memory
complete sharing of local domain-server port to local AC
Merge pull request #3876 from ZappoMan/bugFixes

fixes the stutter in animation when observer moves
Merge pull request #3878 from birarda/master

changes required for AC to discover a local DS
fix for ice-server heartbeat without an access token
Merge pull request #3872 from ZappoMan/cleanupMenus

remove Entities developer menu items from C++ menu, make them available through script
Merge branch 'master' of https://github.com/highfidelity/hifi
fix for custom hifi URL lookup