Blender Git Loki

Bugfixes for Armatures, SplineIK, and F-Curve RNA:
* Fixed the handling of the 'draw_active' flag for drawing of armatures. This is now cleared from bones in old files (so one bone always got represented as active in the viewport even when others were selected), and the flag is correctly set temporarily when drawing the bones (only one place had been done).

* Fixed typo with SplineIK that was making the root bone of the bone chains always be ignored. Similar functionality can come back at some point, but in a more useful form.

* Shortened the UI names for the F-Curve colouring modes to increase readability. The old ones were too long to be able to distinguish between entries in the UI.