[@major] SMART-1384 Finish setup of JobAd app to use common appConfigurer for NodeJS apps. Refactored app_configurer. Main method receives now object with options. Added logger, and config methods.
[@major] SMART-1384 Finish setup of JobAd app to use common appConfigurer for NodeJS apps. Refactored app_configurer.  Added testMode parameter.
[@major] SMART-1384 Finish setup of JobAd app to use common appConfigurer for NodeJS apps. Refactored app_configurer.  Added testMode parameter.