Give the stream a reference to the connection
Support HTTP_1_1_REQUIRED on the server
Merge pull request #85 from todesschaf/wip/stream-connection-reference

Give the stream a reference to the connection
Merge pull request #86 from todesschaf/wip/http_1_1_required_server

Support HTTP_1_1_REQUIRED on the server
Merge https://github.com/molnarg/node-http2
added phase3