Blender Git Loki

Expose WITH_OPENXR build option to Python API

Prepare Toggle VR Session operator to be enabled by an add-on

GPencil: Cleanup comments.

Merge branch 'master' into greasepencil-object

Merge branch 'master' into asset-engine

Conflicts:
source/blender/blenkernel/intern/library.c

Merge branch 'master' into functions

Cycles: Remove some debug flags

cleanup Map

UI: File Browser Large Thumbnails with Drives

This updates the prvicon sheet to a version that includes storage drives

cleanup Set

move hash table slot iterators out of class

Initial support for custom allocators for containers

Cloth: some code to better understand problems with pinning

Merge branch 'feature/blender_tangentanimrelease_cmake' into develop

The code that allows CLion to index the external library headers is only for Windows and CLion for now.

Add blender_tangentanimrelease.cmake config file for builds

To use the configuration on Windows the command line is like this:
cmake -G "Visual Studio 15 2017 Win64" -C "..blenderbuild_filescmakeconfigblender_tangentanimrelease.cmake" ..blender

To build it:
cmake --build . --target install --config RelWithDebInfo -- /maxcpucount

Fix warnings

Windows: Print warning and disable `WITH_OPENXR` if SDK is not found

Merge remote-tracking branch 'origin/master' into temp-lanpr-staging

Merge branch 'master' into functions