note about encryption and why it must be
test datastore now using same settings as seed
badger options extracted from storage for test and other uses
one place it was missing
all using badger/v3 now
peer database entry count implemented
fixed stray incorrect refactorings
added expiry to interface, now propagates correctly
eliminated type switch with extending of interface
Access to badger View and Update now in Engine
Datastore now available via Listener
