catalog needs option to deliver non-resolved references

[jvandegriff]

For an info request, if you specify resolve_references=false on the request, you will get JSON that might have a definitions block at the top and then JSON references to these items later on in the info.

Now that the catalog can include info level information, users should be able to request the resolve_references=false version of this as well, since it is potentially much more compact.

Reminder: currently, the default of for a server to resolve all JSON references so clients only get references if they request it (and even if you request it, the server might even be using references).

[jvandegriff]

need to add another row in the one-row table of request parameters for the catalog endpoint to enable clients to request the not resolving of references

[jbfaden]

Closed by #220 (Pull request 175-...)