* separate migration from util and make its dependencies into libs:
* snappy
* kvdb
* error
* common
* renamed common -> macros
* util error does not depend on snappy module
* ethsync does not depend on util nor ethcore_error
* nibbleslice and nibblevec merged with patricia_trie crate
* removed unused dependencies from util
* util journaldb traits does not need to be public
* util_error
* fixed ethcore compile error
* ignore .swo files
* Update chain.rs
* 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
* bloom crate link
* database layout and outdated tests
* state db alterations
* v10 migration run
* using arc
* bloom migration
* migration fixes and mess
* fix tests
* Consolidation migration
* Started db amalgamation
* Using client constants for columns
* Adding with_columns constructor
* Migrating to single db
* Fixing tests.
* test.sh without verbose
* Fixing warnings
* add migration tests that catch the bug
* make multiple migrations more robust
* add moved v9
* Merge branch 'noop-migrations' into single-db
* spurious line
* clean up migrations ordering
* update comment [ci skip]
* Bumping default number of max_open_files & re-ordering columns.
* fix merge
* fix ignored analysis tests
* Caching best block content
* Faster best_block_header
* Adding progress to v8 migration
* clean up warnings
* Separate hashes and bodies in the DB
* Separate hashes and bodies in the DB
* Fixed tests
* new Compressible rlp trait
* new Compressible rlp trait
* make compressed rlp iterable
* make compressed rlp iterable
* invalid rlp slice swapper
* switch compress to swapper, add reverse swapper test case
* add basic account compression test
* add new rlp trait
* new Compressible rlp trait
* make compressed rlp iterable
* invalid rlp slice swapper
* invalid rlp slice swapper
* switch compress to swapper, add reverse swapper test case
* switch compress to swapper, add reverse swapper test case
* add account compress/ decompress test
* make compressor cleaner, use hashmaps for swapper
* improve compression tests
* add a DecompressingDecoder, change Decoder to take refernce
* separate rlp compression related stuff
* new Compressible rlp trait
* new Compressible rlp trait
* new Compressible rlp trait
* make compressed rlp iterable
* make compressed rlp iterable
* make compressed rlp iterable
* invalid rlp slice swapper
* invalid rlp slice swapper
* invalid rlp slice swapper
* switch compress to swapper, add reverse swapper test case
* switch compress to swapper, add reverse swapper test case
* switch compress to swapper, add reverse swapper test case
* add basic account compression test
* add new rlp trait
* add account compress/ decompress test
* make compressor cleaner, use hashmaps for swapper
* improve compression tests
* add a DecompressingDecoder, change Decoder to take refernce
* separate rlp compression related stuff
* DecompressingDecoder test
* initial compressing HashDB wrapper
* remove unused test
* change CompressedDB to struct wrapper with overlay
* simplify compressor
* failed RefCell attempt
* use denote to return reference
* compiled compresseddb
* compressdb test, add overlay emplace
* fix overlay reference count handling
* add immutable compresseddb, make account use hashdb
* simplify using trait objects
* enable hashdb for account
* initial state compression attempt
* wrap state db
* add tests for analyzing db
* add account predicate
* try to compress data fields as rlp too
* remove compression for storage trie
* add a compressing migration
* more compression stats tests
* fix migration import
* nested encoding compression test
* fix decompression, move db stats tests to rlpcompression
* added malformed rlp tests, cover a few edge cases
* new CompressingEncoder struct
* extend migrations to state
* first version working on the whole db
* clean up Compressible impl
* tests cleanup
* add a testing migration
* refactor deep compression using option, add simple compression
* put tests in a module
* fix compressed overlay loading
* simple compression for snapshots
* remove unused DecompressingDecoder
* add a general compressing migration
* add more common rlps to compress
* use static slices for swapper
* add precomputed hashes and invalid rlps
* make decoder private again
* cover more cases with tests
* style
* fix weird indentation
* remove possible panic in payload_info
* make prefix checking safe
* fix db existence check
* remove db dir from test
* pass usize by value [ci skip]
* Improve comment on panic removal.
* add common blocks db rlps
* add compression to blockchain db
* add blocks db migration
* fix the migrations
* remove state compression
* add a separate snapshot swapper
* ability to use different swappers and traversal
* update tests to new interface
* clean up code ordering
* update usage
* fix compilation
* remove unnecessary changes
* move methods to functions to reduce interface
* move test to module
* update common rlps to blocks db
* move tests to tests modules
* remove redundant &
* partially done alternate migration scheme
* finish altering migration framework
* migrate tests to new migration framework
* address comments
* remove superfluous newline
[ci skip]
* TempIdx -> TempIndex
[ci skip]
* modify account_db to work on address hash, not address
* add a database migration for new accountdb
* preserve first 96 bits of keys when combining
* handle metadata keys in migration and preserve first 96 bits
* fix comments and hash address instead of hash
* different migrations based on pruning
* migrations mutably borrow self
* batch abstraction for migration
* added missing licence headers
* overlay recent v7 migration
* better error handling, migrate version key as well
* fix migration tests
* commit final batch and migrate journaled insertions
* two passes on journal to migrate all possible deleted keys
* use bloomchain crate in blockchain module. remove obsole chainfilter submodule
* update database version to 6.0
* removed redundant line
* simple db migration
* make migration slightly more functional
* bloomchain migration
* migration version is just a single unsigned integer
* updated migration v6
* parity migration
* db migration
* removed hardcoded migration dir
* replace ptr::copy with clone_from_slice, removed potential endianess problem from trace/db.rs
* removed superfluous line
* blockchains log blooms config is not exposed any more
