| Fri, 27 Apr 2012 22:37:14 -0700 | Scott Morrison | changes for GT | file | diff | annotate |
| Thu, 26 Apr 2012 06:57:24 -0600 | Kevin Walker | two small changes in intro requested by Peter | file | diff | annotate |
| Mon, 12 Dec 2011 16:32:10 -0800 | Kevin Walker | added a homeo/pl/smooth etc note early in the intro | file | diff | annotate |