Proper config & download files fix

mozen/src/main/java/mozen/auth/WebSecurity.java

mozen/src/main/java/mozen/business/IModelManager.java

mozen/src/main/java/mozen/business/ModelManager.java

mozen/src/main/java/mozen/business/TagRepository.java

mozen/src/main/java/mozen/business/UserManager.java

mozen/src/main/java/mozen/business/UserRepository.java

mozen/src/main/java/mozen/model/CustomLayer.java

mozen/src/main/java/mozen/model/Model.java

mozen/src/main/java/mozen/web/ModelController.java

mozen/src/main/resources/application.properties