* version: bump stable to 2.4.6
* fix(whisper expiry): current time + work + ttl (#10587)
* update bootnodes (#10595)
* config: update goerli bootnodes
* config: update kotti bootnodes
* Constantinople HF on POA Core (#10606)
* Constantinople HF on POA Core
Plan Constantinople/St.Petersfork HF on POA Core network at block 8582254.
Original PR in POA repository: https://github.com/poanetwork/poa-chain-spec/pull/110
* Remove extra empty line
* evm: add some mulmod benches (#10600)
* evm: add blockhash_mulmod bench
* evm: use num-bigint for mod ops
* Update kovan.json to switch validator set to POA Consensus Contracts (#10628)
* Fix publish docs (#10635)
* Fix publish docs
* this never should be forced, either way compiling previous versions will produce outdated docs
* fix array, var was moved to the group project global variables list
* Add FIXME link for a state mod statement
* Remove unused benches feature in ethcore
* Fix evm benches compile
* Fix ethash benches compile
* Switch to criterion
* 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
* Add a basic instruction c-like enum
* Fix all compiling errors
* Fix tests
* Access instruction info as a Instruction impl
* Use macro to avoid duplication in from_u8
* Use single space instead of multiple tabs to avoid formatting issue
* Fix evmbin compile
* typo: indentation
* Use if let to remove an expect
* Address grumbles
* 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
