Merge branch 'c++api' of github.com:ctiller/grpc into c++api

INSTALL

Makefile

build.json

examples/pubsub/README

examples/pubsub/empty.proto

examples/pubsub/label.proto

examples/pubsub/main.cc

examples/pubsub/publisher.cc

examples/pubsub/publisher.h

examples/pubsub/publisher_test.cc

examples/pubsub/pubsub.proto

examples/pubsub/subscriber.cc

examples/pubsub/subscriber.h

examples/pubsub/subscriber_test.cc

include/grpc++/client_context.h

include/grpc++/completion_queue.h

include/grpc++/config.h

include/grpc++/impl/call.h

include/grpc++/impl/client_unary_call.h

include/grpc++/impl/rpc_service_method.h