Add a simple build.gradle and ratpack handler to get us started with
Default to using the gradle daemon for local work
Add some spock and groovy dependencies for some unit tests
Committing some experimenting before I mess it all up again.

Current thinking is that I need to implement a CuratorClient object pool which
will make it easier to pluck objects for Ratpack handlers
Move these files into a different package structure
Start fetching information from zookeeper on load of the main page