Replace ExternalIdentifierTranslator with a converter from Resources <-> Nodes

This Converter is also aware of the JAX-RS UriBuilders, so it can possibly be
easily used in other contexts.

Also, consolidate version-awareness into the converter so it is always
available.
Replace toPath() with a call to the IdentifierConverter
Update JcrPropertyStatementLister to work with refactored code
Initialize JMS base URIs in all request-scoped resources that update objects
Add Unit tests for FedoraLDP
Transfer integration tests from FedoraNodesIT to FedoraLdpIT
fixing minting for resources below the top level
Add integration test for requests with URI-encoded fcr:metadata suffix

https://www.pivotaltracker.com/story/show/78034072
Refactor JcrRdfTools to streamline exposed interface
Vary HTTP caching based on the Accept header and other common headers
Add support for LDP IsMemberOfRelation
Add LDP integration test that uses DirectContainers