- building without python works again
- rename maxi/mini to i_max/i_min (so thay are available for function names)
- some minor edits to IK stretch setting (no functional changes).
- Upgrade Recast library to latest portable version
- Implement recast_qsort based on FreeBSD qsort.c to have
portable thread safe quick sort for use in conversion routine.
- Better default value for the Build Navigation Mesh operator
