Jersey RestAPI: Info Resource + Object Templates + CORS finetune
 - Added a Info resource for configuration, languages, users etc.
 - PAY ATTENTION: Refactored class com.freedomotic.util.Info to make it compliant to json/xml representation
 - Adapted major plugins to above refactoring
 - Added supported languages list resource (refactored com.freedomotic.Util.I18n class)
 - Added EnvObject templates list and deployment
 - CORS: fix and tune in order to better accomplish standard behavior