fix menu config of visible stats
merge upstream/master into andrew/bispinor
more guards to prevent crashing in bad particle edit packets
Merge pull request #3163 from ZappoMan/fixeParticleServerCrash

more guards to prevent crashing in bad particle edit packets
Merge pull request #3162 from AndrewMeadows/bispinor

re-enable menu config of expanded stats
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Beginnings of some metavoxel scriptability, to create some test landscapes.