SgInfo - Space Group Info (c) 1994-96 Ralf W. Grosse-Kunstleve
Original SgInfo 1.01 from 1996. The only difference is the new open source license.
See also:
- http://cci.lbl.gov/sginfo/
- https://github.com/rwgk/sglite # No known bugs but also no documentation.
- http://cctbx.sf.net/ # Look for sgtbx. No known bugs, but large.