changed all from model to jpa entity

...ain/java/ntnu/idatt2016/v233/SmartMat/entity/Allergy.java

...main/java/ntnu/idatt2016/v233/SmartMat/entity/Fridge.java

...main/java/ntnu/idatt2016/v233/SmartMat/entity/Recipe.java

...ava/ntnu/idatt2016/v233/SmartMat/entity/ShoppingList.java

.../ntnu/idatt2016/v233/SmartMat/entity/product/Product.java

...idatt2016/v233/SmartMat/repository/ProductRepository.java

.../idatt2016/v233/SmartMat/repository/RecipeRepository.java

...2016/v233/SmartMat/repository/ShoppingListRepository.java

.../ntnu/idatt2016/v233/SmartMat/service/ProductService.java

.../idatt2016/v233/SmartMat/service/ShoppingListService.java

...n/java/ntnu/idatt2016/v233/SmartMat/util/ProductUtil.java

target/classes/application.properties