Rework OODT configuration to make use of Zookeeper for distributed configuration management

OODT is made up of a number of different components, each of which have their own set of configuration files and locations. This is complex to manage and causes additional problems when the platform requires distribution across servers or geographically.

To combat this we are proposing that we migrate the OODT configuration to an opional Zookeeper module that would allow users to commission a zookeeper cluster and register the various OODT components against it, which will allow the zookeeper cluster to maintain the state of the various OODT components regardless of scale.