Add ability to COPY and MOVE nodes (and their children)

Resolve: https://www.pivotaltracker.com/story/show/57813074

Add a method to get the path to a node from a RDF graph subject
Add support for move and copy operations to the NodeService
Expose copy and move operations through the REST API
Fix AtomJMSIT test failures

Resolve: https://www.pivotaltracker.com/story/show/58726512
ModeShape upgrade to 3.6, including necessary change to test PEP
Merge pull request #126 from gregjan/pivotal-59504832

ModeShape upgrade to 3.6, including necessary change to test PEP

Resolves: https://www.pivotaltracker.com/story/show/59504832
Add capability to map node-types to RDF triples

Resolve https://www.pivotaltracker.com/story/show/59441130