Remove unused header file in Convert.h
Add back non-const 'getRootNode()'.
Rename typedef from 'FactoryType0' to 'FactoryType'.
Correct logging message in SurfaceMeshShape.
Revise variable name in ShapeTests, make them more precise.
Merge branch 'feature/mathShape-serialization' into 'master'

Serialize Math Shapes using new style

Merged-on: https://www.assembla.com/code/OpenSurgSim/git/merge_requests/791303
Merge remote-tracking branch 'origin/master' into wip/Serialize-Mesh