AnormCypher 0.9.0

Support for transaction.

• Added Neo4jConnection, which Neo4jREST extends
• Added Neo4jTransaction, along with implicit conversion from Neo4jConnection to an autocommit transaction, which the open transaction object can shadow by being in a code block passed to Neo4jTransaction.withTx

Removed method:

• Neo4jREST.query
  use streamAutocommit

Deprecated API:

• Neo4jREST.sendQuery
  use execute