Kerberos PAM modules

I've started working on a new upstream release of the Kerberos PAM module that's currently used in Debian. I started poking at this last week and got a bit more done today. I still want to finish cleaning up the code for style and refactoring a bit more, but I'm mostly at the point where I need to write documentation and do testing.

It's a bit annoying to be duplicating the work that other people are putting into the Red Hat PAM module that most distributions use, but I really don't like it, plus it doesn't support various features that I've already added to the Debian module. I think the Debian one is better structured and easier to deal with, and I managed to add most of the interesting-looking features from the Red Hat module to it in an afternoon of programming.

With a real upstream release, it will be easier to maintain the Heimdal and MIT versions of the package from the same source. I can also then upload a new version for the etch release that should fix all of the outstanding Debian bugs.

Not sure how much work I'm going to get done on it this week, since I'm on vacation and want to spend plenty of time reading and writing, but so far, so good.