Fix compressed reads in C# and implement some compression interop tests.

Add egg-info to python distribution

Update C# readme.

Add experimental CoreCLR support

Add missing ConfigureAwait(false)

Revamped interop spec, especially wrt compression

Currently, grpcio cannot be used as a dependency for egg packages
(https://github.com/grpc/grpc/issues/6939)

There is likely a better solution, but this is intended as a patch
for the 0.15.0 release.

slightly fancier output for jenkins profiling

Correct lingering FATAL_FAILURE sites

Make src/node/tools/package.json consistent with its template

use qps_json_driver for latency profiling

Fix errored streams prematurely terminating, add a test

Force receiving a SETTINGS frame as the first frame

Fix memory leak upon receiving two RST_STREAMs

Change with_call from (Unary, Stream)UnaryMultiCallable parameter to (Unary, Stream)UnaryMultiCallable attribute