hold back some gems, do fix rspec issue

spec/spec_helper.rb

@@ -45,6 +45,7 @@ Spork.prefork do
     config.include MessageBus
     config.mock_framework = :mocha
     config.order = 'random'
+    config.infer_spec_type_from_file_location!
 
     # If you're not using ActiveRecord, or you'd prefer not to run each of your
     # examples within a transaction, remove the following line or assign false