This grossly simplifies the protoc invocation to:
python -m grpc.protoc.compiler --python_out=... --grpc_python_out=...
[...] --plugin=protoc-gen-python-grpc=grpc_python_protoc_plugin... [...]

C# finishing serverside request stream should not be required to dispose.

Add C# wrapping tests and fix some issues with the API.

Cleanup tools/jenkins directory

Allow directly specifiying connection path

Made Node tests support multiple versions and set the Node default version to 4 everywhere possible

Ruby docker files and config

Properly using our build.yaml source of truth to generate our list of public APIs.

Explicitly cast constant value to gpr_atm

Node tools: use the right extension for running protoc on Windows