graze/guzzle-jsonrpc — pull request #4 by dantudor (2014-01-20 02:48:30+00:00)
Title: jsonrpc is not a required response parameter

jsonrpc parameter is not deemed required by either the 1.0 or 2.0 [JSON-RPC Spec](http://www.jsonrpc.org/specification#response_object)

I removed the check in the response constructor and removed the test.