* Wiring up DumpNodes response for Inspector
* Finalize everything and test that it works
* Get Count and DumpNodes working for Overlay Cache
* WIP updating payment rollup to check statDB instead of overlay
* FIrst pass at updating statDB to take wallet and email
* Passing tests
* use pb.NodeOperator instead of Meta struct
* remove TODO
* revert go.mod
* Get SQL migration working correctly
* Changes Meta to Operator in NodeStats struct
* Adds update operator logic for statDB
* Fix db migrate tests - added v5 snapshot
* User friendly msg for missing snapshot version
* Passing tests
* Change node update to happen in discovery instead of in overlay
* Fix logic and update function calls
* Update comment on UpdateOperator interface method
* Update name of parameter
* Change type of argument to UpdateOperator
* Updates statDB tests
Update statdb args/return values to minimize structs
Simplify statdb.Update() to update all stats instead of an arbitrary subset determined by flags
Remove CreateIfNotExists logic from statdb.Update()
Simplify audit code structure
* intial changes to migrate statdb to masterdb framework
* statdb refactor compiles
* added TestCreateDoesNotExist testcase
* Initial port of statdb to masterdb framework working
* refactored statdb proto def to pkg/statdb
* removed statdb/proto folder
* moved pb.Node to storj.NodeID
* CreateEntryIfNotExistsRequest moved pd.Node to storj.NodeID
* moved the fields from pb.Node to statdb.UpdateRequest
ported TestUpdateExists, TestUpdateUptimeExists, TestUpdateAuditSuccessExists TestUpdateBatchExists
