Merge remote-tracking branch 'upstream/v1.0.x' into node_dependency_update

CMakeLists.txt

Makefile

build.yaml

package.json

src/core/lib/surface/version.c

src/csharp/.nuget/packages.config

src/csharp/Grpc.Auth/project.json

src/csharp/Grpc.Core.Tests/AppDomainUnloadTest.cs

src/csharp/Grpc.Core.Tests/NUnitMain.cs

src/csharp/Grpc.Core.Tests/SanityTest.cs

src/csharp/Grpc.Core.Tests/packages.config

src/csharp/Grpc.Core.Tests/project.json

src/csharp/Grpc.Core/VersionInfo.cs

src/csharp/Grpc.Core/project.json

src/csharp/Grpc.Examples.MathClient/packages.config

src/csharp/Grpc.Examples.MathClient/project.json

src/csharp/Grpc.Examples.MathServer/packages.config

src/csharp/Grpc.Examples.MathServer/project.json

src/csharp/Grpc.Examples.Tests/NUnitMain.cs

src/csharp/Grpc.Examples.Tests/project.json