* move common forks and parameters to common params
* port specs over to new format
* fix RPC tests
* parity-machine skeleton
* remove block type
* extract out ethereum-specific methods into EthereumMachine
* beginning to integrate Machine into engines. dealing with stale transitions in Ethash
* initial porting to machine
* move block reward back into engine
* abstract block reward logic
* move last hash and DAO HF logic into machine
* begin making engine function parameters generic
* abstract epoch verifier and ethash block reward logic
* instantiate special ethereummachine for ethash in spec
* optional full verification in verify_block_family
* re-instate tx_filter in a way that works for all engines
* fix warnings
* fix most tests, further generalize engine trait
* uncomment nullengine, get ethcore tests compiling
* fix warnings
* update a bunch of specs
* re-enable engine signer, validator set, and transition handler
* migrate basic_authority engine
* move last hashes into executedblock
* port tendermint
* make all ethcore tests pass
* json-tests compilation
* fix RPC tests: change in gas limit for new block changed PoW hash
* fix minor grumbles
* validate chainspecs
* fix broken import
* fix transaction verification for pre-homestead
* whisper skeleton
* basic message store
* rallying and message logic
* pass host info to network protocol handlers
* choose who starts rally based on node key
* module reshuffling
* mining messages
* prune messages by low PoW until below size target
* associated error type for ethkey generators and `OsRng` generator
* beginnings of RPC
* generic message handler for whisper
* reshuffle code order
* standard payload encoding and decoding
* basic crypto
* minor restructuring of net code
* implement shh_post
* merge?
* implement filters
* rand trait for hash types
* filter RPCs for whisper
* symmetric encryption of payload
* pub-sub
* filter tests
* use only secure random IDs
* attach arbitrary protocols to network
* basic integration of whisper into Parity
* eagerly prune low PoW entries
* broadcast messages with salted topics
* node info RPC
* fix import
* fix leading zeros calculation
* address minor grumbles
* do more validation of imported headers in light client
* generalize informant with traits
* informant implementation for light client
* make comment into TODO
* fix broken test
* disable full checking of headers in light client in sync tests
This is a huge change, which includes some changes to replace code that
originally cloned to reuse allocations instead. The updated
`elastic-array` crate renames its consuming `Vec`-conversion method to
`into_vec`, which means that I can do a simple
`sed -i 's/to_vec/into_vec/'` and then fix the compilation errors.
This commit is probably a minor performance win and definitely a
significant readability win.
* header back-references for on demand
* initial back-reference implementation for on demand requests
* answer requests from cache
* answer requests from cache, add tests
* strongly typed responses for vectors of homogeneous requests
* fix fallout in RPC without optimizing
