PHP: need additional cli flags in scripts

PHP: update helloworld and route guide

Fixes for the scripts packaged in the ruby gem

Release 0 11 ruby doc updates

Update C# examples to 0.7.1 release

- should work using the beta api package
- ensure any generated code is consistent with the proto definition

- ensure the link in the QuickStart doc is updated

PHP: fix watchConnectivityState unit test

Also
- update any changes in language-specific package installation

- ensure installation links this branches version of the install instructions
- update docs to account for any language-specific install changes

Fixing Makefile issue which would re-evaluate the base path for included dependency files.

PHP: jenkins flakes

Fixing usage of the BUILDDIR variable.

Move content-type handling code across to 0.11

Update protobuf submodule to fix Objective-C

bump version of C# to 0.7.1

Fixing sanity.

Update to nan 2.0

Do not use string_ref for output params.

Fix Python dockerfile.

Update Python release number to 0.11.0b1.

Now both using absolute and relative directory for that variable should work.

  BUILDDIR=/tmp/build-grpc make
  BUILDDIR=../build-grpc make

PHP: add examples for Apache and Nginx