New Features
- delegating balance requests to upstreams
- XPub addresses for Bitcoin
- support Esplora type of upstream
- support Rinkeby and Ropsten - #64
Bug Fixes
- 🔥 invalid eth_chainId for Ethereum Mainnet
- lag is not observed on bitcoin
- doesn't return balance if no UTXO for specified address
- sendrawtransaction is not enabled for Bitcoin API
- returns processed json for block with tx, instead of original json - #45