Update configuration defaults
Created by: dagurval
Change defaults to listen for RPC and websocket connections on all intefaces.
The project we forked from aimed to be a private server, so listening only on localhost made sense. However, ElectrsCash is aimed to be a public facing server.
The blocktxid cache is reduced and tx cache is incresed the same amount. Observations shown in production show that tx cache is more used.