Various forum fixes from 13.x - part 2 (notification fixes)
[bp/r52686][FIX] forums: Message-ID header cannot be set using the Zend addHeader method any more, need to use setMessageId (will still throw an exception if the message-id has been set previously).
Fixes WSoD in forums when using "Forward messages to..." mailing list sync feature. 
[bp/r52690][FIX] forums: Don't add empty name to the outbound_from email 
[bp/r52691][FIX] maillib: Zend doesn't parse "Name <email@example.com>" style addresses for from or reply-to (any more?), so it needs the name supplied separately. Also Zend adds wraps message-id with < and > so remove from our call. 
[bp/r52692][FIX] forums: Send email and name separately for from and reply-to

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@52739 b456876b-0849-0410-b77d-98878d47e9d5