Make MediaGoblin development setup dead easy

[Christopher Allan Webber]

Make it super, super simple to set up a development environment.

Unfortunately, as much as I prefer virtualenv for deployment, I
think it requires too much special python packaging knowledge to
maintain. I'm going to add support for / rewrite the hacking\_howto
section for using zc.buildout. Virtualenv will still be an option
(and that will be mentioned), but I'm fairly sure that zc.buildout
is the only option that makes working with such a codebase doable
for people who **aren't** deeply familiar with python packaging.

Also need to check in a basic working paste deploy config file to
make running the server simple.

(We'll probably keep virtualenv instructions in the deployment
guide but that's a ways off.)

[Christopher Allan Webber]

Done!

[Will Kahn-Greene]

The original url for this bug was ​http://bugs.foocorp.net/issues/268 .