espeed/bulbs — pull request #118 by etandel (2013-12-06 20:25:04+00:00)
Title: Add create_unique_vertex() index method.

Based on [this feature](http://docs.neo4j.org/chunked/stable/rest-api-unique-indexes.html#rest-api-get-or-create-unique-node-create) of Neo4J's REST API.