• Fix a bug causing high CPU usage after startup
• eth_sendTransactionAsync was added. This call returns immediately to allow sending many private transactions/bursts of transactions without waiting for the recipient parties to confirm receipt of the encrypted payloads. An optional callbackUrl may be specified--when a transaction is submitted to the transaction pool, it will be called with a POST request containing either {"error": "error message"} or {"txHash": "0x..."} (Please note: This is a temporary integration to improve performance in high-latency environments when sending many private transactions. It will be removed at a later date when account management is handled outside Ethereum.)