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.
* updated docopt, env_logger, semver and regex crates
* updated parking_lot to 0.4
* fixed compiling on linux
* updated igd to 0.6
* updated jsonrpc
* fixed regex related compiler error on linux
* fixed naming of rlp modules
* RlpStream cleanup
* appending short rlp lists (0...55 bytes) is 25% faster
* RlpStream does not use bytes module, nor trait Stream
* removed unused code from rlp module
* compiling ethcore-util with new rlp serialization
* compiling parity with new rlp serialization
* fixed compiling ethcore-light with new rlp serialization
* fixed compiling ethsync with new rlp serialization
* removed redundant comment, print
* removed redundant double-space
* replace usage of WriteBytesExt with ByteOrder
* Create new column family for local node info
* remove DBTransaction::new reliance on DB
* KeyValueDB trait
* InMemory KeyValueDB implementation
* journaldb generic over KVDB
* make most of `ethcore` generic over KVDB
* fix json tests compilation
* get all tests compiling
* implement local store (just for transactions)
* finish local store API, test
* put everything into place
* better test for skipping bad transactions
* fix warning
* update local store every 15 minutes
* remove superfluous `{}`s
* CHT builder and prover
* use CHT abstraction in provider
* hide CHT internals from header chain
* fix itertools conflict by updating all to 0.5
* cht proof checker, use it in on_demand
* prune states based on memory param
* pruning memory CLI and usage in sync
* return purged value from memorydb
* calculate memory used incrementally in overlayrecentdb
* refactor shared history pruning code in client
* Fixed usage alignment
* journal_size function for fast memory calculation
* triedb cleanup
* factor out common portion of trie query
* allocate far fewer times in node decoding
* fix bench compilation
* introduce OwnedNode variant to make iter fast again
* generalize recorder trait to Query
* decode trie outputs cost-free in state
* test for passing closure as query
