Adds views MeterReading scenario to RetailCustomers feature.
Adds show to UsagePointController.
Adds findById to UsagePoint service and repository.
Changes Usage Point Title to use Description
Refactors UsagePointBuilder
Adds mrID setting to UsagePointBuilder.
Changes MockRestTemplate to use 15min fixture.
Cleans up ATOMMarshaller tests.
Adds MeterReadingController
Adds MeterReading service and repository
Adds building of MeterReadings to UsagePointBuilder
Adds UsagePoint and MeterReading model tests
Refactors tests to use Factory model objects.
Adds ReadingType to views.
Adds ReadingType tests and updates model.
Adds building of ReadingType to UsagePointBuilder
Changes from code review
Merge pull request #2 from energyos/meter-readings

Retail Customer can view Usage points with Meter readings and Reading Type