Add google protobuf library to be included as part of
contrail-install-packages

Change-Id: I5ebffd92f432433487b8ba698cbade14b1f45959
Adding kernel version 3.11.0-22-generic

Change-Id: I34095fe45a9dc92b0277d872fec6c53948588a49
Introducing new package - python-contrail-vrouter-netns

Change-Id: Ied5504ec6663af7a05fc9c0bd30001a135382716
Merge "Introducing new package - python-contrail-vrouter-netns"
resolve merge confilicts.