First version that supports STARTTLS for SMTP; works with postfix but not with exchange
Merge pull request #1 from hreese/master

Fixed --help (% needs to be escaped in help text)
Merge pull request #2 from hreese/add_starttls

Add starttls
Update TODO/added UDP item
Added TODOS
Fixed thinko in scan summary.  Now all ports are reported individually as well.
Added caveat regarding inconclusive results.