Add horrible hacks to ensure accessor relationships aren't duplicated
Add a hacky implementation of a depth filter which rejects all nodes
that are over a certain number of traversals in a relationship
hierarchy. Ultimately this should be done with the Gremlin/Pipes loop
construct, and should support incoming as well as outgoing relation-
ships, since the direction is currently quite arbitrary in a system.
Add support for specifying direction of depth filter relationship.
Add support for specifying direction of depth filter relationship.