Custom Permalink URLs, Part 2

As a follow-up to Custom Permalinks I have created an update to the patch here: permalink2.diff (diff against 0.9-alpha1)

Its structure is now a bit cleaner, and I have added config directives for most of our other permalinks (categories, authors, feeds, paths) and enhanced the detection routine.

It still needs a LOT of testing, but I like the general direction of it. I would be happy to hear as many feedback reports of it as possible. :-)