sock:
 * async connect + resolve
 * async SSL handshake
 * sock_openssl, or improve sock_gnutls
 * tests for all of the above...

irc_net:
 * tracking of channel users list

modules:
 * proper unload support, there needs to be some kind of completion notification thing that can then destroy the module
   once it's completely unloaded - maybe some kind of module-resource-reference-counting thing, which will eventually
   be needed anyways?

irc_log:
 * logging of NICK/QUIT
 * handling of SQL errors?