* remove trailing whitespace in ci/audit.sh
* code review fixups
* rename GOSSIP_PORT_RANGE => SOLANA_PORT_RANGE
* remove out-of-date TODO in localnet-sanity.sh
* remove features=test and code that was using it (localhost prohibitions in
crdt) added TODO in crdt.rs, maybe we should boot localhost in production
networks?
* boot tvu_window from NodeInfo: instead, send repair requests from the repair
socket (to gossip on peer) and answer repair requests via the sockaddr
from the repair request
* remove various unused pub functions
* banish SocketAddr parse().unwrap() to a macro that can also accept simpler stuff
Error handling is still clumsy. We should switch to something like
`error-chain` or `Result<T, Box<Error>>`, but until then, we can
at least be consistent across modules.
* Replace magic numbers for 64k event size
* Fix gossip, dont ping yourself
* Retransmit only to listening nodes
* Multinode test in stub marked unstable
* message needs to fit into 256 bytes
* allocator to keep track of blocks of messages
* udp socket receiver server that fills up the block as fast as possible
* udp socket sender server that sends out the block as fast as possible