Cleanup and get rspec to run again

lib/crono/engine.rb

@@ -5,5 +5,11 @@ module Crono
     initializer 'crono.assets.precompile' do |app|
       app.config.assets.precompile += %w( crono/application.css crono/materialize.min.css )
     end
+
+    config.generators do |g|
+      g.test_framework :rspec
+      g.assets false
+      g.helper false
+    end
   end
 end