Merge branch 'master' into grpc_ruby_add_rubocop_fix_lint_style_issues

.gitignore

Makefile

build.json

include/grpc/grpc.h

include/grpc/support/slice.h

src/compiler/cpp_generator.cc

src/compiler/cpp_generator.h

src/compiler/cpp_generator_helpers.h

src/compiler/cpp_plugin.cc

src/compiler/ruby_generator.cc

src/compiler/ruby_generator.h

src/compiler/ruby_generator_helpers-inl.h

src/compiler/ruby_generator_map-inl.h

src/compiler/ruby_generator_string-inl.h

src/compiler/ruby_plugin.cc

src/core/iomgr/alarm.c

src/core/iomgr/alarm_internal.h

src/core/iomgr/iomgr.c

src/core/iomgr/iomgr.h

src/core/iomgr/iomgr_internal.h