Patch Kaya RPC to work with latest zilliqa-js

[edison0xyz]

Description

• Patched Kaya RPC to work with zilliqa-js 0.2.x. Compatibility with zilliqa-js 0.2.0 #60
• Correctly deducts gas when nonce is incorrectly based on config settings CreateTransaction: should return an error message if TX nonce is lower than account nonce #52
• Fixed contract address computation Wrong contract address computation #53
• Fixed log issues with contract deployment Incorrect log when createTransaction for calling transition #59
• Correctly deducts gas when interpreter fails to run
• Fixed kaya rpc behavior to be consistent with core (https://github.com/Zilliqa/Zilliqa/blob/master/src/libServer/Server.cpp). For example, Kaya no longer throws an interpreter error to the caller. It will handle the error inside, and deduct the correct amount of gas based on config files. Transaction Hash is still returned to the user.

CC: @evesnow91 @mickys @bobio2018

Review Suggestion

Run test/scripts/TestBlockchain.js to verify that the solution works

Status

Implementation

• ready for review

[iantanwx]

Just a few minor comments, which are not critical.

[iantanwx]

Currently, @zilliqa-js/account supports BIP-39. I suggest you use the Wallet class in conjunction with a passphrase to generate these accounts, as that makes it repeatable between runs of kaya.

[edison0xyz]

Logged this as an issue. Will work on it next time. #64