Adding Question and Answer models, controllers, specs, admin resources, ...

...and views.

Mondo-ish PR; somewhat of a glorified scaffold generator.

To get this running locally:

```sh
$ rake db:migrate
$ rake db:migrate RAILS_ENV=test   
```

~~Currently figuring out how to get the migration running on Travis. I might just add a before_script to travis.yml.~~ It's the Pry fork.




/app is already autoloaded. these are not necessary.