Renames FeedBuilder and API to Subscription
Replaces separate Cuke runners with a single one
Adds AtomService that creates a feed for a List of UsagePoints
Adds new FeedBuilder for building a feed from a list of UsagePoints
Refactors TestUtils to expose namespaces map
Adds controller for UsagePoint REST interface
Adds integration tests for UsagePointRESTController
Adds Cukes for REST API usage point list