Blender Git Loki

Transform widget update

- now support for global/local/normal orientation.
- LMB click on center switches orientation mode
- in object mode, local (now) only displays on single object selected
- in editmode, Normal orientation is derived from faces selected
- if no normal can be found, it shows local orientation

Currently implemented, for test, in Mesh editmode and PoseMode.

Note for PoseMode; the 'translation widget' shows on "IK" bones but
doesn't translate, it rotates instead. Pretty interesting to use the
translate widget for it...least cluttered display I think.

Note for Matt; I tried MMB click for switching orientation... it's just
weird that way... such clicks, repeatedly, with mousewheels isnt nice
either.