Delete persister when its thread finishes, copy metavoxel nodes on subdivision
so that we'll know that they changed.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Some additional comments.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Beginnings of some metavoxel scriptability, to create some test landscapes.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Merge (but don't clear redundant nodes) after reading subdivisions.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Create new nodes on subdivision.
Unfortunately, the early test for subdivision doesn't work, which means that,
for now, we need to traverse the entire tree to find subdivided nodes.  To be
revisited.
Script bindings for QColor.
The weak shared object hash can be accessed by multiple threads, so it must
be locked.
Better scoping.
Provide basic conversions to/from SharedObjectPointer (still have to work out
how to handle reference counting correctly).
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Merge pull request #3173 from ey6es/metavoxels

More metavoxel progress: basic scriptability, fix for subdivisions, threading fixes.