Blender Git Loki

Merge branch 'master' into wiggly-widgets

Did some further edits on related changes.

Conflicts:
source/blender/blenkernel/intern/object.c
source/blender/blenlib/intern/math_vector.c
source/blender/blenloader/intern/writefile.c
source/blender/editors/include/ED_transform.h
source/blender/editors/space_graph/space_graph.c
source/blender/editors/space_image/space_image.c
source/blender/editors/space_node/space_node.c
source/blender/editors/space_sequencer/sequencer_draw.c
source/blender/editors/space_sequencer/space_sequencer.c