Merge github.com:google/grpc into format

Makefile

build.json

src/compiler/go_generator.cc

src/compiler/go_generator.h

src/ruby/bin/interop/interop_client.rb

src/ruby/bin/interop/interop_server.rb

src/ruby/bin/math_client.rb

src/ruby/bin/math_server.rb

src/ruby/bin/noproto_client.rb

src/ruby/bin/noproto_server.rb

templates/Makefile.template

test/core/util/port.h

test/cpp/client/channel_arguments_test.cc

test/cpp/client/credentials_test.cc

test/cpp/end2end/end2end_test.cc

test/cpp/end2end/sync_client_async_server_test.cc

test/cpp/qps/client.cc

test/cpp/qps/qpstest.proto

test/cpp/qps/server.cc

tools/run_tests/run_tests.py