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

src/core/security/credentials.c

src/core/surface/init.c

src/core/transport/chttp2/frame_settings.c

src/core/transport/chttp2_transport.c

src/csharp/Grpc.Core/Internal/AsyncCallServer.cs

src/csharp/Grpc.Core/Internal/AtomicCounter.cs

src/csharp/Grpc.Core/Internal/CallSafeHandle.cs

src/csharp/Grpc.Core/Internal/ChannelSafeHandle.cs

src/csharp/Grpc.Core/Internal/CompletionQueueSafeHandle.cs

src/python/grpcio/tests/_result.py

templates/vsprojects/global.props.template

templates/vsprojects/vcxproj_defs.include

test/core/support/alloc_test.c

test/core/transport/connectivity_state_test.c

tools/jenkins/run_portability.sh

vsprojects/global.props

vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj

vsprojects/grpc_cpp_plugin/grpc_cpp_plugin.vcxproj

vsprojects/grpc_csharp_plugin/grpc_csharp_plugin.vcxproj

...s/grpc_objective_c_plugin/grpc_objective_c_plugin.vcxproj