Merge branch 'master' of https://github.com/grpc/grpc into bad_ssl_certificate_path

.clang_complete

.gitmodules

BUILD

MANIFEST.md

Makefile

binding.gyp

build.yaml

config.m4

examples/node/package.json

examples/python/helloworld/greeter_client.py

examples/python/route_guide/route_guide_client.py

gRPC.podspec

grpc.gemspec

include/grpc++/impl/codegen/completion_queue_tag.h

include/grpc++/impl/codegen/impl/async_stream.h

include/grpc++/impl/codegen/impl/status_code_enum.h

include/grpc++/impl/codegen/impl/sync.h

include/grpc++/impl/grpc_library.h

include/grpc++/impl/proto_utils.h

include/grpc++/security/auth_context.h