Updates to PMP home doc links

[cavis]

An upcoming release to the PMP will introduce some changes to home document links. Changes have already been deployed to https://api-sandbox.pmp.io. Here's my synopsis of what needs to happen for this SDK:

Breaking changes:

• none

Cleanup changes:

• urn:collectiondoc:query:guids should be removed from test

Possible upgrades:

• urn:collectiondoc:form:listcredentials added
• urn:collectiondoc:form:documentdelete added (identical to documentsave, but with hints.allow = DELETE)