eugene-eeo/kenji — pull request #1 by eugene-eeo (2014-07-24 07:21:17+00:00)
Title: Node relation

Allow for queries about the relation between two nodes, restricted by a mapping. For example:

```python
g = Graph(graphs=['knows'], mapping={'person':['knows']})
g.store(V(1).knows(2))
g.relation_between('person', 1, 2)
```