Add functional tests

This patch adds beaker tests for an "all-in-one" node consisting of an
OpenStack controller and a compute node cohabitating the same VM. Since
the module is designed for at least two separate nodes, the test
applies the controller and compute manifests in sequence, rather than
combining them, to avoid duplicate definition errors.

Change-Id: I902598fdd0a25cd84181e9661eda7d1b1a6c1ed7
Depends-On: I558756e4704d3b3e090db92edfeca6f75def1e04

Gemfile

@@ -27,4 +27,8 @@ group :development, :test do
 
 end
 
+group :system_tests do
+  gem 'beaker-rspec', :require => false
+end
+
 # vim:ft=ruby