* Add new Vm trappable interface
* Exec/Resume interface
* Basic implementation of CallCreateExecutive
* Implement resume_call and resume_create for executive
* Move convertion to call/create result to separate function
* Implement consume that converts resumable to non-resumable
* Use consume for Executive::call/create
* Resumable EVM
* Implement tracing mode without needing subtracers
* Implement vmtracer so it doesn't require extra structs for subtracing
* Use the new tracing mode in executive
* Fix most of the linting errors for cargo build
* Add the concept of stack_depth
* Add back crossbeam
* Fix some test compile
* Fix prefix address test
* Fix evm crate tests
* Fix wasm crate test compile
* Fix wasm runner compile
* Fix jsontests compile
* Fix evmbin compile
* Fix an issue with create nonce and better vm tracing interface
* Fix linting
* Fix evmbin compile
* Fix unconfirmed_substate and static_flag
* Fix an issue in create address logic
* Fix top-level tracing
* Handle builtin tracing
* Fix suicide and reward tracing index stack
* Fix an issue where trap conflicts with tracing
* Fix an issue in parent step vm tracing
* Fix revert tracing
* Fix evmbin tests
* Remove params clone
* Fix TODO proofs
* Fix jsontests compile
* Fix evmbin merge issue
* Fix wasm merge issue
* Fix wasm test
* Fix ethcore merge warnings
* Fix evmbin compile
* Better expect messages and add some trace::skip_one asserts
* Feed in ActionParams on VM creation
* Fix ethcore after Vm interface change
* Move informant inside Interpreter struct
* Move do_trace to Interpreter struct
* Move all remaining exec variables to Interpreter struct
* Refactor VM to allow single opcode step
* Fix all EVM tests
* Fix all wasm tests
* Fix wasm runner tests
* Fix a check case where code length is zero
* Fix jsontests compile
* Fix cargo lock
* Use match instead of expect
* Use cheaper check reader.len() == 0 for the initial special case
* Get rid of try_and_done! macro by using Result<(), ReturnType>
* Use Never instead of ()
* Fix parity-bytes path
* Bypass gasometer lifetime problem by borrow only for a instance
* typo: missing {
* Fix ethcore test compile
* Fix evm tests
* Update `add_license` script
* run script
* add `remove duplicate lines script` and run it
* Revert changes `English spaces`
* strip whitespaces
* Revert `GPL` in files with `apache/mit license`
* don't append `gpl license` in files with other lic
* Don't append `gpl header` in files with other lic.
* re-ran script
* include c and cpp files too
* remove duplicate header
* rebase nit
* 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
