Temporary fix for plugin initialization problem

C# improve handling of serverside calls with unary response.

cronet wrapper code

Ruby: improve server error handling, fix a reference error

Improve docs on GRPC_OP_RECV_CLOSE_ON_SERVER

add a dummy service with no rpc to test codegen coverage

Add proto comments to generated _pb2.py files

Removed leftover function declaration from channel args

Fixed name of test config for h2_census

Fix coverage for large message and secure async end2end

Don't try to read files that have been moved/renamed.

Moved protos out of core_codegen interface

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