Syntax: LINK nick password

Links your nickname to another nickname in the NickServ
database.  Once linked, your nickname will take on all the
properties of the 'host' nickname, good and bad.  Access
lists, Ignore lists, Memos, Channel access's, Settings and
password are all shared, but akicks, suspends, etc are also
shared.  The password must be the password of the host nick.
You must drop a nick before being able to link it.
