- ipcache.h: update documentation


git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid/trunk@4372 82007160-df01-0410-b94d-b575c5fd34c7
- listener.h, listener.c: use HOSTIPLEN for Listener::name; update documentation


git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid/trunk@4375 82007160-df01-0410-b94d-b575c5fd34c7