A child Postfix port with TLS enabled by default

[Sahil Tandon]

Some people have asked for TLS to be enabled by default in mail/postfix.
I have been reluctant in order to abide by POLA, and to be consistent
with how Wietse distributes Postfix upstream. Recently, bz@ proposed an
alternative:

  http://people.freebsd.org/~bz/20140228-01-postfix-tls.diff

I updated the patch, primarly to adjust CONFLICTS:

  http://people.freebsd.org/~sahil/postfix-tls.diff

Because I have seldom worked with child ports, and mail/postfix is
widely deployed, I would appreciate feedback from -ports before
proceeding. If there is no opposition within a week or so, I will go
ahead and commit.

-- 
Sahil Tandon