Added external lib folder to autoload to allow custom class to be loa…

…ded into OnDemand (#3307)

apps/dashboard/config/application.rb

@@ -43,6 +43,7 @@ class Application < Rails::Application
       # Ensuring OOD initializers run last so that user's cannot override what we 
       # specify unless we allow the override as well in our own initializers.
       config.paths["config/initializers"] << ::Configuration.config_root.join("initializers").to_s
+      config.autoload_paths << ::Configuration.config_root.join("lib").to_s
       config.paths["app/views"].unshift ::Configuration.config_root.join("views").to_s
     end
   end