Merge github.com:grpc/grpc into cleaner-posix3

BUILD

Makefile

README.md

binding.gyp

build.yaml

config.m4

gRPC.podspec

grpc.gemspec

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

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

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

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

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

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

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

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

include/grpc/grpc.h

include/grpc/impl/codegen/grpc_types.h

package.json

package.xml