Adds nutritional information to food menus

I recently made a [web scraper](https://github.com/revan/RU-Food-Scraper) for the food.rutgers.edu website that follows a similar layout to the existing API, but adds calories, serving size, and ingredients.

I changed the remote JSON source to my own vps, but you'll probably want to run the scraper on your own servers.

Kyle updated the iOS app to use this, so I made parallel changes here.

I changed a good bit of the logic for the food section for the new JSON structure, but preserved all current functionality. Added a listener to the ListView to pop up a nutrition info box when touched.