Conflicts:
	gRPC.podspec
	tools/doxygen/Doxyfile.core.internal

Re-enabled warnings in the gRPC podspec

Adding clang packages for msan/tsan/asan testing.

Add package.xml file for pecl extension

prevent leaking gpr_slice in windows on_read()

Added missing but included headers to build.json

Conflicts:
	include/grpc/compression.h

Introduced compression levels as an abstraction for the actual algorithm

Disallow started request writers on GRPCCall init

Prints test names as ruby tests run

make sure docker image is up-to-date before each build

Document core behavior w.r.t. argument lifetimes

Also clean up some excess whitespace and make some notes about ownership.

Support sending and showing received metadata in grpc_cli

New core shutdown API

Link to official protobuf podspec in the README

undo hotfix from #1731

Merge branch 'fix_intermediary_low_test_for_1577' of github.com:nathanielmanistaatgoogle/grpc into merge-merge-merge

It was still linking to my pull request's podspec.