Blender Git Loki

Merge commit '9269574089a742130f02c0a1184a19d94f0e665d' into pbr-online

Merge conflicts fixes include fix on ob->reflectionplane for write and
read, and a few manual fixes to account for the ID remap changes

Conflicts:
source/blender/blenkernel/intern/object.c
source/blender/blenkernel/intern/world.c
source/blender/blenloader/intern/writefile.c
source/blender/editors/space_view3d/view3d_draw.c
source/blender/gpu/GPU_draw.h
source/blender/gpu/intern/gpu_draw.c
source/blender/gpu/intern/gpu_material.c
source/blender/gpu/intern/gpu_texture.c
source/blender/gpu/shaders/gpu_shader_vertex_world.glsl