- removes cbor and instead uses streamable (https://trello.com/c/anzukjLs/901-remove-cbor)
- data types checked for payload ids and function (https://trello.com/c/4kPt98as/921-data-types-not-checked-on-payload-ids-and-function-names)
- Compressed format for messages: 1 byte for the message type / function, 2 optional bytes for the payload id
- Optimization to not fetch transactions for a block if we already have them
- RejectBlock message
- Software version sent in the handshake message (although ignored now)
- Removed mempool hack, big blocks can now be made with this codebase
* on_disconnect callback called if present, for services (full_node, farmer, etc) when a connection is closed
* connections added or removed are reflected in UI
* No migration of wallet full node peer
* More blockchain_transaction tests re-enabled
* Blockchain tests uncommented
* get_block_peak fixed in blockchain.py
* Reduce some logging in tests, and asynciosqlite logs suppressed for the DEBUG level