gradle'd and converted to dropwizard

Got bored and piloted this out - feel free to disregard. Just wanted to see the difference here (and desperately didn't want to install tomcat onto this laptop).

Converted over from running inside tomcat to running as a standalone java app. Much easier to run, host, and set up.

Like `Conchordance`, you'll need gradle to run this, but it's a bit more complex due to the current state of things (in particular the relationship and orientation of `Concordance` and `ConchordanceAPI`. You'll need:

1. `Conchordance` cloned adjacent to this repo.
1. `gradle eclipse` or `gradle idea` (it'll create both projects)
1. Import both into your IDE - one should have a dependency on the other.

You can also just clone both adjacently and run `gradle run`. Probably a good idea to run that way on a server.