Updated from global requirements

Change-Id: I76cdfdb0693d041310ae6ff64dab6edb8b1a88c4
Factor hash ring management out of the conductor

This patch pulls some logic around querying and instantiating hash
rings out of the ConductorManager into a new HashRingManager.

Change-Id: I523cb77aae287c44f59b40783e54f6557bc924bc
Merge "Factor hash ring management out of the conductor"
Merge "Updated from global requirements"