neo4j/neo4j — pull request #1740 by sarmbruster (2013-12-18 12:53:57+00:00)
Title: traversal for constant direction

Implementing a PathExpander ensuring that relationship direction will be constant along the path.
The first relationship determines the direction to follow for all subsequent steps.
Relates to http://stackoverflow.com/questions/20654988/directed-paths-in-neo4j