Merge branch 'blender2.8' into temp-object-multi-mode

CMakeLists.txt

build_files/build_environment/cmake/boost.cmake

build_files/build_environment/patches/boost.diff

build_files/cmake/config/blender_lite.cmake

doc/python_api/examples/bpy.props.1.py

doc/python_api/examples/bpy.props.5.py

intern/cycles/app/cycles_standalone.cpp

intern/cycles/render/buffers.cpp

intern/cycles/render/buffers.h

intern/cycles/render/session.cpp

intern/cycles/render/session.h

intern/gawain/gawain/gwn_element.h

intern/gawain/gawain/gwn_vertex_buffer.h

intern/gawain/src/gwn_batch.c

intern/gawain/src/gwn_element.c

intern/gawain/src/gwn_immediate.c

intern/gawain/src/gwn_vertex_buffer.c

intern/ghost/CMakeLists.txt

intern/ghost/intern/GHOST_ContextWGL.cpp

intern/ghost/intern/GHOST_TaskbarX11.cpp