They check whether they're running on testnet by accessing the
m_rpc_server object, which does not exist when in RPC mode.
Also, fix hard_fork_info being called with the wrong API.
Displays current block height and target, net hash, hard fork
basic info, and connections.
Useful as a basic user friendly "what's going on here" command.
Daemon interactive mode is now working again.
RPC mapped calls in daemon and wallet have both had connection_context
removed as an argument as that argument was not being used anywhere.
many RPC functions added by the daemonize changes
(and related changes on the upstream dev branch that were not merged)
were commented out (apart from return). Other than that, this *should*
work...at any rate, it builds, and that's something.
