pounce 2.4

This release fixes the join option for compatibility and allows
using channel keys.

The default MANDIR has changed to ${PREFIX}/man. If this is no
longer correct for your system, run ./configure with --mandir= set
appropriately or set MANDIR in the environment.

Notes on connecting pounce with particular networks and clients are
documented in the QUIRKS.7 file.

The pounce IRC channel is now #ascii.town on irc.tilde.chat.

The pounce-palaver utility has moved to the extra/palaver directory.
This release adds the -s flag to match the nick and keywords
case-sensitively. Badge counts are now tracked per connection.

This release adds the pounce-notify utility in the extra/notify
directory. This can be used to run an arbitrary command to provide
notifications for a pounce instance.