- Initializes grpc correctly in the JWT utils.
- Make the email mapping work with the new service accounts produced by
  Google IAM.
- Adding check for email issuers where the issuer has to be the subject as well.
- Implementing portable version of memrchr.

Change grpcio_tools to grpcio-tools

allow disable core_list setting and override qps server in benchmarks

Support --exclude in run_tests_matrix.py

This should address the difference in how we ask users to install
grpcio-tools and the files the user ends up downloading from PyPI.

Allow running many runs per test without flooding the logs

Reintroduce test timeouts eliminated by mistake

Get wrapped endpoint's fd in secure_endpoint's endpoint_get_fd

Fix metrics server

v1.0.x manual upmerge

Add Python Client to Test Negative HTTP2 Conditions

Documentation for the new tests can be found https://github.com/grpc/grpc/blob/master/doc/negative-http2-interop-test-descriptions.md

grpclb: skip slash in server uri path if present

Add negative http2 interop description file

Manual changes:

 - Fixed use of Exception.message in _invalid_metadata_test.py

 - Fixed merge of one_failed_as_unavailable in rpc_server_spec.rb

 - Added "set -e" to generate_build_additions.sh

Modify HTTP/2 test server's command-line arguments

don't print multiple imports to protobuf modules

Add grpc_pollset_set to grpc_resolve_address

Deflake lb_policies_test

Make event order consistent, and make 'end' and 'error' mutually exclusive

Add copyright to new files

Use snake_case names for default rpc method implementations

Merge pull request #9120 from soltanmm-google/if-you-run-away-from-things-it-just-means-you're-going-to-see-them-again-when-you-wrap-around-the-universe

Fix Python setup-time diagnostics

Add check on return value from start_client_batch

accept non-positional arguments.

C++ filter API cleanup