converting CreateDatabase to take connection string
fixing field name missed in previous refactor
add GetHubDbLazily to reduce constantly creating and initializing new instances
fix PartitionRegistry registration
extract PartitionStats from Partition

- allows us to treat Partition as an Enterprise in PPM
no longer need hub in ppm to be able to register a partition
Merge pull request #55 from daptiv/extract-partitionstats-from-partition

Extract partitionstats from partition