* Refactor usage of registry contract
* remove unsed file
* Rename methods & fix comments
* refactor contract_client:
* Intoduced separate traits for asyncronous and syncronous contract clients
* Removed registrar from ethcore::client
* s/ContractClient/AsyncContractClient
* make the tests compile and pass
* omit changes in ethcore
* Use only one trait for ContractClient
* Use an associated type in the trait to determine syncronous or asyncronous communication
* Export the types from contract-client crate
* Document that "A" in the hash correspons to a DNS A Record A.K.A Address Record
* contract_client -> registrar
* address review feedback
* Refactor updater to use ethabi-derive
* Grumble: do_call type alias
* Empty commit to trigger test re-run
* migration to ethabi-5.0
* migration to ethabi-5.0 in progress
* use ethabi_deriven to generate TransactAcl contract
* use ethabi_deriven to generate Registry contract
* hash-fetch uses ethabi_derive, removed retain cycle from updater, fixed#7720
* node-filter crate uses ethabi_derive to generate peer_set contract interface
* use LruCache in node-filter instead of HashMap
* validator_set engine uses ethabi_derive
* ethcore does not depend on native_contracts
* miner does no depend on native_contracts
* secret_store does not use native_contracts (in progress)
* removed native-contracts
* ethcore and updater does not depend on futures
* updated ethereum-types
* fixed all warnings caused by using new version of ethereum-types
* updated ethabi_derive && ethabi_contract to get rid of warnings
* removed another retain cycle in updater, fixed following minor version on update
* moved contracts out of native_contracts res
* updated ethabi_contract
* fixed failing test
* fixed failing test
* there is no need to create two contracts of the same kind any more
* simplify updater::ReleaseTrack conversion into u8 and add several tests for it
* applied review suggestions
* applied review suggestions
* Bump version.
* Fix RPC crate.
* Fix BoxFuture in crates.
* Compiles and passes tests!
* Get rid of .boxed()
* Fixing issues with the UI.
* Remove minihttp. Support threads.
* Reimplement files serving to do it in chunks.
* Increase chunk size.
* Remove some unecessary copying.
* Fix tests.
* Fix stratum warning and ipfs todo.
* Switch to proper branch of jsonrpc.
* Update Cargo.lock.
* Update docs.
* Include dapps-glue in workspace.
* fixed merge artifacts
* Fix test compilation.
* move native_contracts ABIs to JSON files, add urlhint
* port hash-fetch to futures, fix tests
* fix dapps compilation, defer async port to later
* activate dapps server in the light client
* better formatting