Blender Git Loki

Scripts:
- Campbell Barton updated his Wavefront obj importer;
- Jean-Michel Soler updated his paths import (eps part).

BPython bug fixes:

- oldie found by Ken Hughes: reference count of two pyobjects not being decremented in slider callback (Draw.c):
http://projects.blender.org/tracker/index.php?func=detail&aid=2727&group_id=9&atid=127

- Gergely Erdelyi found that setText() in Text3d module was not updating str length var, leading to mem corruption and provided a patch:
http://projects.blender.org/tracker/?func=detail&aid=2713&group_id=9&atid=127

- doc updates (suggested by Campbell)

Thanks guys.