* Rename RegistryInfo -> RegistryInfoDeprecated
* Add BlockId parameter to Registrar::get_address and RegistrarClient::call_contract
* Remove RegistrarClient::Call (use async for now); add RegistrarClient::get_address
* Remove Registrar type in favour of naked trait
* Use CallContract trait bound instead of separate call_contract method
* Make RegistrarClient::get_address and URLHint::resolve synchronous
* RegistrarClient::get_address: return check if address is zero
* Modify RegistryInfo::registry_address to take &str
* return Result from RegistryInfo::registry_address
* Replace RegistryInfo with RegistrarClient
- Modifed RegistrarClient::registrar_address to return Option
- Removed BlockChainClient::registrar_address
* Fix other build configs
* Fix unit test builds
* Remove local RegistrarClient type from run::execute_impl
* Remove registrar.json from ethcore
* Formatting/line breaks
* Update RegistrarClient docs, remove explicit lifetime
* Weak ref to ethcore client from hash fetch client
* Fix unit tests
* Add client-traits crate
Move the BlockInfo trait to new crate
* New crate `machine`
Contains code extracted from ethcore that defines `Machine`, `Externalities` and other execution related code.
* Use new machine and client-traits crates in ethcore
* Use new crates machine and client-traits instead of ethcore where appropriate
* Fix tests
* Don't re-export so many types from ethcore::client
* Fixing more fallout from removing re-export
* fix test
* More fallout from not re-exporting types
* Add some docs
* cleanup
* import the macro edition style
* Tweak docs
* Add missing import
* remove unused ethabi_derive imports
* Use latest ethabi-contract
* Move many traits from ethcore/client/traits to client-traits crate
Initial version of extracted Engine trait
* Move snapshot related traits to the engine crate (eew)
* Move a few snapshot related types to common_types
Cleanup Executed as exported from machine crate
* fix warning
* Gradually introduce new engine crate: snapshot
* ethcore typechecks with new engine crate
* Sort out types outside ethcore
* Add an EpochVerifier to ethash and use that in Engine.epoch_verifier()
Cleanup
* Document pub members
* Sort out tests
Sort out default impls for EpochVerifier
* Add test-helpers feature and move EngineSigner impl to the right place
* Sort out tests
* Sort out tests and refactor verification types
* Fix missing traits
* More missing traits
Fix Histogram
* Fix tests and cleanup
* cleanup
* Put back needed logger import
* Don't rexport common_types from ethcore/src/client
Don't export ethcore::client::*
* Remove files no longer used
Use types from the engine crate
Explicit exports from engine::engine
* Get rid of itertools
* Move a few more traits from ethcore to client-traits: BlockChainReset, ScheduleInfo, StateClient
* Move ProvingBlockChainClient to client-traits
* Don't re-export ForkChoice and Transition from ethcore
* Address grumbles: sort imports, remove commented out code
* Fix merge resolution error
* merge failure
* Add client-traits crate
Move the BlockInfo trait to new crate
* New crate `machine`
Contains code extracted from ethcore that defines `Machine`, `Externalities` and other execution related code.
* Use new machine and client-traits crates in ethcore
* Use new crates machine and client-traits instead of ethcore where appropriate
* Fix tests
* Don't re-export so many types from ethcore::client
* Fixing more fallout from removing re-export
* fix test
* More fallout from not re-exporting types
* Add some docs
* cleanup
* import the macro edition style
* Tweak docs
* Add missing import
* remove unused ethabi_derive imports
* Use latest ethabi-contract
* Remove re-export of `CallContract` and `RegistryInfo` from `ethcore/client`
* Remove CallContract and RegistryInfo re-exports again
This was missed while fixing merge conflicts
