deft-deploy module; some reorganizing to use the simple templating

So, besides the new module I took the liberty of moving some code by @waywardmonkeys to a place where I could use it...

Basically you do:

    deft
    > open hello-world
    > deploy docker 2013.2

to create a Dockerfile to use the 2013.2-onbuild image or simply

    > deploy heroku 

to create a Procfile to launch your executable.

Comments? Suggestions?

EDIT:
formatting
These should be ``define command heroku check`` so that they're available in a hierarchical way.