Kitchen.js: Rename ingredinentCenterX -> ingredientCenterX
Rename ingredinentCenterY -> ingredientCenterY
Fix stupid mistake in the Templates
Fix another bug in the Templates
Add Ajax.js and JSONHandler.js

Ajax.js
loads a JSON file asynchronous to the website and performs a function defined in the getJSON function.

JSONHandler.js
uses the Ajax Object to load the recipes.json, ingredients.json and utensils.json and makes those primitively available.
Kitchen.js: Add Methods to create ingredients and utensils dynamically.
Pot.js: Remove draggable parameter in constructor.
Ingredient.js: Change constructor to extend of VisualRenderAnimation
Add aniObject parameter to constructor
Remove draggable parameter from constructor
recipes.json: Fix error - difficulty is an int not String