* Only use kvdb "column families"
This PR contains the changes necessary to use the `kvdb-*` crates from https://github.com/paritytech/parity-common/pull/278 (so a synchronized merge is required) which drops support for the old-style rocksdb "default" column to get a smaller and less complex API.
As it stands this PR is working correctly except for secret-store; we need to migrate it to use a new column family.
* Fix secretstore build
* Fix secretstore build: include ethkey when building with the "accounts" feature
* typos
* Restore state test commit
* Override all of parity-common from git
* Be precise about version requirement to migrate secretstore code
* Update ethcore/db/src/db.rs
Co-Authored-By: Niklas Adolfsson <niklasadolfsson1@gmail.com>
* Address review grumbles
* Review grumbles
* Cleanup
Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>
* WIP move errors, pod_account and state account to own crates
* Sort out dependencies, fix broken code and tests
Remove botched ethcore-error crate
* remove template line
* fix review feedback
* Remove test-only AccountDBMut::new
* Extract AccountDB to account-db
* test failure
* test failure 2
* third time's the charm
