GSoC: finagle-smtp - initial

This is initial version of SMTP client for Finagle, which I am working on during GSoC'14.
For now it supports sending independent commands to SMTP server and sending a simple text email to one ore more addresses (without cc, bcc and reply-to). Usage is described in `README.md`. 
I might be misreading, but it looks like it doesn't specify case in the section you linked to, and in the section on [synctactic notation][0] they say that if it's in quotes, that means that it's case insensitive.  Is there something I'm missing?

[0]: http://tools.ietf.org/search/rfc5322#section-1.2.2