Migrate methods from NycTransitDataService to TransitDataService

This pull request moves the five methods added to the NycTransitDataService back to the OBA core TransitDataService.  This facilitates the use of the OBANYC user interface (desktop and mobile) and SIRI APIs on top of an OBA core instance, fulfilling the immediate need for a migration path away from the OBA core UI (and the deprecated Google Maps V2 API).

To supply configuration information to the UI, this pull request includes a simple ConfigurationService implementation, but the best option would be to also port over the OBANYC TDM and make it easily deployable.