Fix bug in merges (merging more than two lines)
Make install: install the CSS for the HTML docs
Readme: remove reference to "wontfix", which has gone
plans: irc_connect is gnarly with #ifdef ASYNCH_NL black magic
Makefile: de-duplicate the main body as between Makefile and distMakefile
tutorial: update the explanation of osconf stuff (use config.mak)
Fix issue (#18) with double-free(nick)

Now the canonical 'default nick' is bufs[0].nick, which is derived from nick.
As soon as bufs[0].nick is set, nick is NULLed.  This should winkle out any
 uses that I've missed.
Leave UTF8 alone when escaping unprintables in input buffer
Handle UTF-8 in cursor movement & backspace

It's a little bit ugly, because we're storing everything as UTF-8 internally.
 We should probably change it all to UCS-4, and convert to (and from) UTF-8 at
 the last (resp. first) moment.  However, that'd be a big overhaul, and it's
 not clear what we should do when the input is malformed as UTF-8.
The present solution works for now, but it's one of those bits of code you
 *really* hope won't break and need maintenance.
Makefile tweaks
Some changes to input handling (prodding around a weird lockup bug)

Lockups seem to happen when pressing F-keys, but the precise circumstances to
 reproduce aren't known.
Fix trivial error in a comment
Fix for Issue 19 (Crazy dates in X_TOPICWASSET)
ctcp: correctly send ERRMSGs for unknown CTCP requests
Refactored out CTCP handling to new ctcp.{c,h}, and used data-driven handlers
ctcp: extended and improved protocol handling
Strip CTCP from display of sent /msg text
Nudge copyright year to 2013
.gitignore: remove some generated code files from the repo
Add copyright messages to source files that lacked them