Add beaker_spec_helper to Gemfile

Gemfile

@@ -25,6 +25,7 @@ end
 group :system_tests do
   gem 'beaker',              :require => false
   gem 'beaker-rspec',        :require => false
+  gem 'beaker_spec_helper',  :require => false
   gem 'serverspec',          :require => false
 end