Merge github.com:grpc/grpc into truebin

CMakeLists.txt

Makefile

binding.gyp

include/grpc/impl/codegen/grpc_types.h

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

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

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

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

src/core/ext/transport/cronet/transport/cronet_transport.c

src/node/ext/byte_buffer.cc

src/node/ext/byte_buffer.h

src/node/ext/slice.cc

src/node/performance/benchmark_server.js

src/node/performance/generic_service.js

src/node/performance/worker_service_impl.js

...n/grpcio_reflection/grpc_reflection/v1alpha/reflection.py

templates/binding.gyp.template

test/core/end2end/end2end_nosec_tests.c

test/core/end2end/end2end_tests.c

test/core/end2end/gen_build_yaml.py