Merge branch 'server_channel_affinity' of github.com:sreecha/grpc into affine

grpc.def

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

include/grpc++/server_builder.h

include/grpc/grpc.h

src/core/lib/iomgr/ev_poll_and_epoll_posix.c

src/core/lib/iomgr/ev_posix.c

src/core/lib/iomgr/ev_posix.h

src/core/lib/iomgr/tcp_server_posix.c

src/core/lib/surface/completion_queue.c

src/core/lib/surface/completion_queue.h

src/core/lib/surface/server.c

src/cpp/server/server_builder.cc

src/python/grpcio/grpc/_cython/imports.generated.c

src/python/grpcio/grpc/_cython/imports.generated.h

src/ruby/ext/grpc/rb_grpc_imports.generated.c

src/ruby/ext/grpc/rb_grpc_imports.generated.h

test/core/end2end/fixtures/h2_sockpair+trace.c

test/core/end2end/fixtures/h2_sockpair.c

test/core/end2end/fixtures/h2_sockpair_1byte.c

test/core/iomgr/fd_posix_test.c