Marcin Nowrot

Please see above

@paulvi Thank you for your message. I've tried both fixing the build and polkaj, and finally settled for the TypeScript Polkadot API as polkaj implements only a small part of...

Also fixes #7

Hi @rfelgent that's right. For me, I've managed to hack it in by extending `ExternalTaskClient`, `ExternalTaskClientBuilderImpl` and `ExternalRequestExecutor` so the two last contain a constructor that takes an `HttpClientBuilder` which...