Moved log file name generation to perl
I don't think that the class/personal distinction is the best for
general protocols, but I don't know what should replace it. I've made
class-logging default to only zephyr (a slight change from previous
behavior, where jabber MUC's would be logged to $classlogpath, as well
as all non-private non-login messages from other protocols), but made
logging path generation overridable.
TODO: Decide whether or not to filter out more 'bad' characters.
Perhaps we should remove '!' because it indicates history in some shells
and makes things obnoxious, or '~' becase it indicates homedirs in many
shells.
* '/' is for separating directories, and we don't want to accidentally
make subdirectories
We first NFKC for zephyrs, and then apply lc. The zephyr servers
apply case-folded NFKC (so says
http://zephyr.1ts.org/browser/zephyr/server/zstring.c). We should
probably use Unicode::CaseFold instead of lc. I'm also not sure what
the order case-adjustment and normalization should be.
We first NFKC, then apply lc, to jabbers, as per
http://xmpp.org/internet-drafts/attic/draft-ietf-xmpp-nodeprep-03.html
(though I can't actually find anything that specifies the case-folding
algorithm, nor the ordering).
We now use lc instead of g_utf8_strdown to normalize AIM screennames.