Merge github.com:grpc/grpc into spinlock

CMakeLists.txt

Makefile

binding.gyp

build.yaml

include/grpc/impl/codegen/grpc_types.h

src/core/ext/transport/chttp2/transport/chttp2_transport.c

src/core/ext/transport/chttp2/transport/internal.h

src/core/lib/iomgr/tcp_uv.c

src/core/lib/surface/call.c

src/core/lib/surface/server.c

src/node/ext/completion_queue_threadpool.cc

src/node/ext/server.cc

src/node/ext/server.h

src/node/ext/server_generic.cc

src/node/ext/server_uv.cc

src/proto/grpc/testing/echo_messages.proto

templates/binding.gyp.template

test/core/end2end/end2end_nosec_tests.c

test/core/end2end/end2end_tests.c

test/core/end2end/gen_build_yaml.py