Uri Shachar

> @ushachar Will you take a look at this since we presumably want the same "shard ID" to be the same between cluster v2 and cluster v1. IDs in flotilla...

@madolson / @PingXie - Externally imposed is fine - the IDs allocated by Flotilla will still be monotonically increasing (internally, we maintain a counter and verify that the value is...

> @ushachar / @YaacovHazan can we merge #203 before this one to ensure all code added here is covered on the flow tests. Assuming it is but worth the double...

@filipecosta90 rebased to include coverage