Added postfix so we can send emails from servers

This is necessarily not meant to fill a "front end email" delivery role, but more provide a way to atleast use php's mail() function.
Merge pull request #66 from humanmade/postfix

Added postfix so we can send emails from servers
adds ssh2 packages
Merge pull request #69 from humanmade/adds-ssh2

adds ssh2 packages
Merge branch 'master' into vmware