Tomasz Drwięga authored May 23, 2017 and Arkadiy Paronyan committed May 23, 2017

* Signer subscription.

* Fixing RPC tests.

* Block Headers eth-pubsub.

* PubSub for light client.

* Fixing tests.

* Updating to proper jsonrpc version.

* Update to correct tests.

* Fixing tests.