first stab at simple mailer

[Martin P. Hellwig]

Simon 'corecode' Schubert wrote:
<cut>
What is still missing:
- SMTP delivery
- alias expansion
- proper sysexit codes
<cut>

Great work!
But I'm not sure why it is so important to have network capability, is 
it not enough to just have a local delivery thing, that does just enough 
to not brake the current dependencies?
If you want more you can just install <insert your favorite mail server>.

I don't mind to have less functionality in the base install if this 
would help to have more security and flexibility.

--
mph