* Move from Unique to Index
* Remove Index
* Make some more Indexes Unique and adjust migration
* Fix Migration Statements
* Fix Typo
* Fix Migration of older Table
* Exchange DROP statement
* Remove "if not exists"
* Revert Change in old Migration
* 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
