Exposed server address string in stub

make initializing overlapped-struct obvious for preventing a ciritical bug

Travis speedup.

Merge C/C++ build steps on Travis

Conflicts:
	.travis.yml

Conflicts:
	.travis.yml

Incoming stream id validation fixes

Ref the cached default creds so that we do not crash next time we use it....

Move end_threads to subclass 

Fix thread local storage error in iOS build

Unify transport & channel op interfaces

Capure thread id with default timer implementation

alive at this time

Trimming down useless variables in the Makefile.

- correct log message on an invalid stream id
- add an additional check that the low bit indicates a client stream id on the server

A bunch of autogenerated variables are currently useless, because of tests actually having no source code attached to them. Let's avoid emitting useless code in that case.

Python migration to batch core API.

Conflicts:
	include/grpc++/channel_interface.h

Add two scenarios in interop test

Mac C++ compile fix

First objc integration tests

When Podfile.lock is present, the prepare_command of the gRPC pod isn’t
executed on “pod install”, even if the Xcode workspace and the Pods/
directory are absent.

add Windows x64 (WIN64) mode and make buildable for the VS project file

Fix test for multiple reads

php dockerfile: one dependency was listed twice