Now all transactions in both cases are waiting for CompleteTransaction or DiscardTransaction to proceed independently from their destination: upstream of local
IMPORTANT: The known issue is that in case of configured UpstreamRPCServer transactions are sent immediately not waiting for CompleteTransaction or DiscardTransaction which brings inconsistency in behaviour and acts as a security breach.
* new UpstreamRPConfig in geth/params to provide upstream configuration
* conditional start of ethereum blockchain sequence based on NodeConfig.UpstreamConfig.Enabled flag state