beaker gemfile fixes

Author: Morgan Haskel

Gemfile

@@ -19,6 +19,9 @@ group :development, :unit_tests do
 end
 
 group :system_tests do
+  if beaker_version = ENV['BEAKER_VERSION']
+    gem 'beaker', *location_for(beaker_version)
+  end
   if beaker_rspec_version = ENV['BEAKER_RSPEC_VERSION']
     gem 'beaker-rspec', *location_for(beaker_rspec_version)
   else