- Flipped the roll values on the default human metarig spine and neck. This
makes bending the rig forward have a positive rotation value, and bending
back have a negative one. More in line with user expectations.
- Improved get_pose_matrix_in_other_space() to account for bones with
"inherit rotation" and/or "inherit scale" turned off.
- Added a text file giving credit to people who have contributed to Rigify
financially or otherwise.