Added a simple script for setting up the CouchDB

Script can create a databse in CouchDB for crafts and also insert an
initial configuration and add attachments to it. It can also delete this
database. This script will be used later to insert all of the views. It
is also the first piece of code to use the new CouchDB driver.
A new metrics interface to be used by both ARTS and the MAL.

This new layer makes it so that no matter how the MAL driver receives
its data, it is still relatively easy to format it properly for CRAFTS.
As Metrics are added to the MetricsCollection, they are inserted into
the hierarchy automatically.
Disabling Travis for now
Removed tests.

I swear I'm not crazy, there was only one, and they were written
prematurely. Everything is still too much in flux to have stable tests.