TODO

   1 - add (optional) timeout for wait_for_hidden_host
   2
   3 - add ability for modules to register additional sockets to monitor
   4   (and socket_listener example module)
   5   also FDs so the bot can monitor a pipe
   6   - add a pipe which allows to input commands even when IRC connection is gone
   7     this might be difficult since there won't be a bot or user or chan object...
   8
   9 - implement timers in the core and/or modlib, by adjusting the select timeout whenever a timer is pending.
  10   call timers as part of the event loop.
  11   this has the potential to remove a LOT of the threading.
  12
  13 - a module to set config settings at runtime
  14   or at least commands to set some config settings like autoloading a module
  15
  16 - fix crash when joining a channel that is forwarded