Moved SMTP transport out of sandbox

[Dain Sundstrom <da...@iq80.com>]

I just applied the SMTP patches from Rick McGuire, and moved the SMTP  
transport out of sandbox/mail and into modules/javamail-transport.  I  
also repackaged it into org.apache.geronimo.javamail.transport.smtp  
because org.apache.geronimo.mail is already used by the mail module  
and it is bad form to split packages across modules.

Rick said he as tested transport has been tested on a few mail  
servers, but more testing would be good.  Also I don't think the code  
supports SMTP auth yet.

How do we package this with the server?

-dain