Conflicts:
	Makefile

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)