Merged master branch

.travis.yml

CMakeLists.txt

Makefile

build.yaml

composer.json

examples/csharp/helloworld/README.md

examples/objective-c/auth_sample/AuthTestService.podspec

examples/objective-c/auth_sample/Podfile

examples/objective-c/helloworld/HelloWorld.podspec

examples/objective-c/helloworld/Podfile

examples/objective-c/route_guide/Podfile

examples/objective-c/route_guide/RouteGuide.podspec

examples/php/README.md

examples/php/composer.json

include/grpc++/support/slice.h

package.json

package.xml

setup.py

src/compiler/config.h

src/compiler/cpp_generator.cc