Add a GrpcLibrary class to wrap grpc_init and grpc_shutdown and convert all the tests to init/shutdown free.

Corrects command/flags used in ruby interop tests

Added e2e tests for server and bidi stream cancellation.

More work in not having to compile OpenSSL.

Added information about custom gRPC install locations in README

Node limit thread usage

Updates the ruby docker file to refresh bundler

Adds proto service runtime and an example of generated stub

Clamp histogram at 1.0 on low end to handle rare possibility of sub-1 entry (likely only for testing)

So the root of the repository doesn’t have 2 podspecs.
All four libraries are subspecs now.
Adjusts the generated code to account for that.

Avoid building shared libraries on Travis. This seems flaky.

Post merge cleanup.

Scripts to build java and cxx docker images from local (uncommitted) cod...

Making sure we don't require OpenSSL for tests that, in fact, don't need it.

Adding some documentation about the build/template system.

when using the script.

Batch metadata

Add uploading private result to GCS

The stub is manually adapted:

- to the evolved runtime,
- as if generated with insertion points.

C# mathserver listens on fixed port