Set up a simple deploy repo for restbase

This repository contains a static checkout of all restbase dependencies along
with the actual source as a submodule. That submodule points to github as
that's where the code is currently hosted, primarily for ease of testing.
Since git hashes are cryptographically secure this is a safe thing to do.

Change-Id: Ib7c93936be6efd3c06b4e2ef16540fc3865a88ff