Merge pull request #274 from wajam/clement-zk-replicas

Fixes for easier ZookeeperConsistencyPersistence integration
Fix zk cluster manager integration test

Modified expected initial value to consider the side effects from new concurency persistence tests
Merge pull request #275 from wajam/manu-fix-zk-it-tests

Fix zk cluster manager integration test
Add Noop implementation of ConsistencyPersistence