* 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
* 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