Ivan Linko issues

Results 2 issues of


                                            Ivan Linko

- Rebuilded commits from PR #7 ,#8 - Added psych dependency ~> 1.3 to run on ruby 1.9.2 (Error: can't dump anonymous class Class)

Here is an example of query ``` Keymaker.service.execute_cypher("START n=node:skillindex('*:*') MATCH (n)-[:belongsTo]->(x)