ROO-3179: Better organize the scaffolded views in a GWT application

Fixed issues with ActivityMapper.  Incorrect paramter EditActivity contructor

ROO-3311: Provide option for Spring Roo managed XML configuration for Services, Controllers, GWT Locators, etc.

Modified service layer to include xml configuration option.  Creates template sevice to create xml files.  Modifed ServiceLayerProvide to Autowire setter rather than field (so setter can be used in XML configuration files).