Recipe serving name wrong when food serving size is less than 1

[cdubz]

The recipe ingredient list will use the food serving name if the food is entered using servings and the food serving size is less than one. E.g. food with 1/4 cup serving size added to a recipe as 1/2 serving will show up incorrectly as 1/2 cup no instead of 1/8 cup.

Related it #19. Seems a specific recipe summary method should be added to the Food model.