Updated RedBox integration:
* Moved to_xml() to CAModel
* JSON configuration file is only semi-generated (uses field names, but layout and field are hard-coded)
* Need to enter ReDBox identifiers to create_json_config and test
Updates for integration with ReDBox:
* Initial implementation for both dataset XML and mappings is ready for initial testing.
* Dataset and service linking isn't implemented yet.
* Service generation isn't implemented yet.
* Many of the ReDBox data is implemented through hidden fields in Metadata, some of these may want to be displayed.