Blender Git Loki

Camera tracking integration
===========================

Fixes for codereview issues pointed by Brecht:

- Replace use_default_clip with use_active_clip setting for
motion-tracking constraints.
- Removed unneeded Clip panel from toolshelf when no clip is opened.
- Put options in Display panel in one column.
Don't want properties region be wider and it should also be
a bit easier to find option you need. Maybe additional re-shuffle
would be good here.
- Reversed order of items in Clip menu
- Re-ordered selection operators in clip editor Select menu to
match 3d viewport order.
- Share common part of sensor/shift and so detection between
object_camera_matrix and Follow Track constraint.
- Fixed typos in translate mode caused by copying files.
- Movie clip angle output is now in radians. Transform node now
accepts rotation in radians too.
- Use scale-rotate-translate order for transformation node and
stabilization data.
Also makes sense when using transform node for non-tracking goals:
image would stay centered when applying only rotation and scale.
Think it's nicer.
- Fixed compilation error caused by recent node-update commit.