I captured all the differences in code between what's in git for AuthFAS, and what's deployed on /usr/share/zikula/modules/AuthFAS on publictest6. I committed everything to a new "pt6-capture" branch:
http://git.fedorahosted.org/git/?p=fedora-zikula.git;a=shortlog;h=refs/heads...
Note that I did my best at making proper git commits, i.e. somewhat self-explanatory and self-contained, in case any of them turn out to be unwanted.
I'm about to do the same thing with the theme, but I expect it's going to be somewhat harder since I don't know a ton about the CSS changes there.