Just a bugfix of the function getIngredients and a cleanup of the Recipe
class.

First it was:
"SELECT c.QUANTITY from INGREDIENTTYPE as i join COMPOSEDOF as co ON
i.ID=co.INGREDIENTTYPEID AND co.RECIPEID='" + recipeID + "'"

Corrected version of query o was missing:
"SELECT co.QUANTITY from INGREDIENTTYPE as i join COMPOSEDOF as co ON
i.ID=co.INGREDIENTTYPEID AND co.RECIPEID='" + recipeID + "'"