Update nghttp2 to sync with envoy (#140)
Update nghttp2 to sync with envoy (#140)

* Fix src/envoy/mixer/README.md

* Update nghttp2 to sync with envoy

* update

* fix typo

gurgenh/proxy,qiwzhang/proxy,qiwzhang/proxy,gurgenh/proxy,gurgenh/proxy,qiwzhang/proxy,gurgenh/proxy,gurgenh/proxy,istio/proxy,lizan/proxy,lizan/proxy,istio/proxy,istio/proxy,qiwzhang/proxy,qiwzhang/proxy,lizan/proxy,lizan/proxy,istio/proxy