Merged changes in the trunk up to revision 25149.

Merged changes in the trunk up to revision 25149.

After the merge operation, running the diff command showed that the
branch had a significant amount of differences from the trunk revision
25149.  I had no idea where these differences came from.  To resolve
them and make the branch up-to-date, I just copied the following files
from the trunk:

release/scripts/io/import_anim_bvh.py
release/scripts/io/import_scene_obj.py
release/scripts/ui/space_image.py
release/scripts/ui/space_view3d.py
source/blender/blenkernel/intern/object.c
source/blender/blenlib/BLI_math_base.h
source/blender/blenlib/intern/math_base.c
source/blender/editors/animation/anim_markers.c
source/blender/editors/armature/armature_intern.h
source/blender/editors/armature/armature_ops.c
source/blender/editors/armature/editarmature.c
source/blender/editors/curve/curve_intern.h
source/blender/editors/curve/curve_ops.c
source/blender/editors/include/ED_mesh.h
source/blender/editors/include/ED_object.h
source/blender/editors/include/ED_particle.h
source/blender/editors/mesh/editface.c
source/blender/editors/mesh/editmesh_mods.c
source/blender/editors/mesh/mesh_intern.h
source/blender/editors/mesh/mesh_ops.c
source/blender/editors/metaball/mball_edit.c
source/blender/editors/metaball/mball_intern.h
source/blender/editors/metaball/mball_ops.c
source/blender/editors/object/object_intern.h
source/blender/editors/object/object_lattice.c
source/blender/editors/object/object_ops.c
source/blender/editors/object/object_select.c
source/blender/editors/physics/particle_edit.c
source/blender/editors/physics/physics_intern.h
source/blender/editors/physics/physics_ops.c
source/blender/editors/sculpt_paint/paint_intern.h
source/blender/editors/sculpt_paint/paint_ops.c
source/blender/editors/sculpt_paint/paint_utils.c
source/blender/editors/space_view3d/view3d_select.c
source/blender/editors/uvedit/uvedit_ops.c
source/blender/windowmanager/WM_api.h
source/blender/windowmanager/intern/wm_operators.c