Clean up spaces/tabs mixing mess (bleh), add some defaults for authd
stuff, and get rid of CHARYBDIS_SOMAXCONN (just define SOMAXCONN if it's
available...).
This also does a lot of surgery on the conf system to reconfigure authd.
/!\ WARNING! ACHTUNG! ADVERTENCIA! ATTENTION! AVVERTIMENTO! /!\
This code has not been run-time tested yet (though it compiles)!
now connid's are allocated on demand and clients may have as many connid's as necessary.
this allows us to build chains of helpers while ensuring the ircd properly tracks and GCs the resources.
