Fails to create a duplicate unique node
fix
added create_or_fail to relationship indexes
Merge pull request #162 from pwaleczek/master

Added 'Create or Fail' methods to node/relationship indexes
Ability to configure httpclient send/receive timeout
Merge pull request #163 from jazminschroeder/configurable-http-timeout

Ability to configure httpclient send/receive timeout
merge add batch_no_streaming method
default Neo4j version is now 2.0.2