[fold] json_value
Refactor out a version of lookupLedger returning Status.
[fold] json_value
[fold] ServerHandlerImp.cpp
[fold] Ledger.cpp
[fold] LedgerData.cpp
Add comment to Ledger.h
[fold] LedgerToJson.h
[fold] rpc/handlers/Ledger.h
Configuration for yielding RPC server.