Syntax: SEND {nick|channel} memo-text

Sends nick or channel a memo containing memo-text.
The recipient will receive a notice that he/she has a new
memo (if the recipient is a channel, all on channel will
recieve a notice of the new News Article).  The recipient's
nickname/channel must be registered with NickServ/ChanServ.
If a channel is given, this function is restricted to level 15(SOp).
