removed not yet ready for prime time libraries
Merge pull request #1305 from ZappoMan/particle_server

Splitting our Octree and OctreeElement functionality from VoxelTree and VoxelNode
Merge branch 'master' of https://github.com/worklist/hifi into more_on_particle_server

Conflicts:
	libraries/particle-server/CMakeLists.txt
	libraries/particle-server/src/ParticleServer.h
	libraries/particles/src/ParticleTree.cpp