looks like collision detection didn't work
reduce number of checks to one per particle
Merge branch 'master' of https://github.com/voxelinc/voxellancer into fix_particle_collision

Conflicts:
	lib/.gitignore
fix build
Merge pull request #286 from voxelinc/fix_particle_collision

looks like particle collision detection didn't work
Merge branch 'master' into flyto