Deprecate MSN Messenger ports to expire 31 OCT 2013
Microsoft ended the primary MSN service for all countries by 30 APR 2013.
Third party clients still work although they can only communicate with
other such clients. The XMPP protocol service is expected to be shut down
by October 2013  although MSP service may continue into early 2014. 
Deprecate all ports that exclusively use MSN protocols and mark the
expiration by the end of October.
Approved by: bapt (portmgr, mentor)