* Add Callisto Mainnet support * Remove merge failure * EIP-649 removed * Remove eip649Reward * Modify difficultyBombDelays * Callisto reward smart contract * Remove ethash params * Fix merge * Update bootnodes * Update block reward to support HF1
* Add Callisto Mainnet support * Add new bootnodes * Remove merge failure * EIP-649 removed * Remove eip649Reward * Modify difficultyBombDelays * Callisto reward smart contract * Remove ethash params * Fix merge