add findClosestParticle()
fixed typo
added easy access to creating a ParticleEditHandle for a know particle ID
We can let qt find things on its own, which will let us add frameworks/plugins inside the bundle
Merge pull request #1359 from ZappoMan/edit_particles

add findClosestParticle()
fix crash, and remove gravity while in hand
Merge pull request #1361 from murillodigital/master

We can let qt find things on its own, which will let us add frameworks/p...
particle tree pruning on update
Merge pull request #1362 from ZappoMan/edit_particles

Implement Prune for Particle Tree to fix long run time stability.
merge fix
Merge branch 'master' of https://github.com/worklist/hifi
added shadows to particles
only render local toy ball sphere if there is an actual toy ball
fix compiler warning
Merge branch 'master' of https://github.com/worklist/hifi into edit_particles
Fix for obnoxious C++0x warning in GCC.
Merge pull request #1364 from ey6es/master

Fix for obnoxious C++0x warning in GCC.
Merge pull request #1363 from ZappoMan/edit_particles

Add shadows and only render local toy ball if one has been created
add particle collisions with voxels
Merge branch 'master' of https://github.com/worklist/hifi into particle_voxel_collisions