Merge branch 'release-0.52.0' into develop
Updated news feed source
Multiple changes

- Documentation updates.
- Removed an unused constructor from ObjHandle.
Minor update of NV_path_rendering wrapper

- Added the PathNVSpec SharedEdge member function.
Fixed a bug in uniform array setter
Updated GL version detection
Updated GL version detection
Started release-0.53.0
Updated changelog and release notes
Updated news feed source
Merge branch 'release-0.53.0'