Changelog

State Machine Breaking

(app, rpc) tharsis#447 Chain ID format has been changed from <identifier>-<epoch> to <identifier>_<EIP155_number>-<epoch>
in order to clearly distinguish permanent vs impermanent components.
(app, evm) tharsis#434 EVM Keeper struct and NewEVM function now have a new trace field to define
the Tracer type used to collect execution traces from the EVM transaction execution.
(evm) tharsis#175 The msg TxData field is now represented as a *proto.Any.
(evm) tharsis#84 Remove journal, CommitStateDB and stateObjects.
(rpc, evm) tharsis#81 Remove tx Receipt from store and replace it with fields obtained from the Tendermint RPC client.
(evm) tharsis#72 Update AccessList to use TransientStore instead of map.
(evm) tharsis#68 Replace block hash storage map to use staking HistoricalInfo.
(evm) tharsis#276 Vm errors don't result in cosmos tx failure, just
different tx state and events.
(evm) tharsis#342 Don't clear balance when resetting the account.
(evm) tharsis#334 Log index changed to the index in block rather than
tx.
(evm) tharsis#399 Exception in sub-message call reverts the call if it's not propagated.

(proto) tharsis#448 Bump version for all Ethermint messages to v1
(server) tharsis#434 evm-rpc flags and app config have been renamed to json-rpc.
(proto, evm) tharsis#207 Replace big.Int in favor of sdk.Int for TxData fields
(proto, evm) tharsis#81 gRPC Query and Tx service changes:
- The TxReceipt, TxReceiptsByBlockHeight endpoints have been removed from the Query service.
- The ContractAddress, Bloom have been removed from the MsgEthereumTxResponse and the
  response now contains the ethereum-formatted Hash in hex format.
(eth) #845 The eth namespace must be included in the list of API's as default to run the rpc server without error.
(evm) #202 Web3 api SendTransaction/SendRawTransaction returns ethereum compatible transaction hash, and query api GetTransaction* also accept that.
(rpc) tharsis#258 Return empty BloomFilter instead of throwing an error when it cannot be found (nil or empty).
(rpc) tharsis#277 Fix BloomFilter response.

(client) tharsis#450 Add EIP55 hex address support on debug addr command.
(server) tharsis#343 Define a wrap tendermint logger Handler go-ethereum's root logger.
(rpc) tharsis#457 Configure RPC gas cap through app config.
(evm) tharsis#434 Support different Tracer types for the EVM.
(deps) tharsis#427 Bump ibc-go to v1.0.0
(gRPC) tharsis#239 Query ChainConfig via gRPC.
(rpc) tharsis#181 Use evm denomination for params on tx fee.
(deps) tharsis#423 Bump Cosmos SDK and Tendermint versions to v0.43.0 and v0.34.11, respectively.
(evm) tharsis#66 Support legacy transaction types for signing.
(evm) tharsis#24 Implement metrics for MsgEthereumTx, state transitions, BeginBlock and EndBlock.
(rpc) #124 Implement txpool_content, txpool_inspect and txpool_status RPC methods
(rpc) tharsis#112 Fix eth_coinbase to return the ethereum address of the validator
(rpc) tharsis#176 Support fetching pending nonce
(rpc) tharsis#272 do binary search to estimate gas accurately
(rpc) #313 Implement internal debug namespace (Not including logger functions nor traces).
(rpc) #349 Implement configurable JSON-RPC APIs to manage enabled namespaces.
(rpc) #377 Implement miner_ namespace. miner_setEtherbase and miner_setGasPrice are working as intended. All the other calls are not applicable and return unsupported.

(keys) tharsis#346 Fix keys add command with --ledger flag for the secp256k1 signing algorithm.
(evm) tharsis#291 Use block proposer address (validator operator) for COINBASE opcode.
(rpc) tharsis#81 Fix transaction hashing and decoding on eth_sendTransaction.
(rpc) tharsis#45 Use EmptyUncleHash and EmptyRootHash for empty ethereum Header fields.