Blender Git Loki

AnimSys2: IPO Drawing-Code (Part 1 of Cleanup)

Started cleaning up the drawing-code for IPO-curves.
* draw_ipocurves() has been cleaned up, with the inner loops being split out into two separate helper functions. The same will need to be done with some of the other functions too.

* Removed the ugly global pickselcode. This was only used in this file under certain conditions, so it seems fine to remove it.

* Usual formatting and commenting tweaks to make this code less intimidating. This is in preparation for some future work on IPO-curves...