Update mixerclient with sync-ed grpc write and fail-fast. (#155)
Update mixerclient with sync-ed grpc write and fail-fast. (#155)

* Update mixerclient with sync-ed write and fail-fast.

* Update to latest test.

* Update again

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