Seed database with college, meals, and menu items.

St. Hugh's is the only college supported, currently. Meals: breakfast,
lunch, and dinner, have been added, along with their start / end times.
Menu items have also been added.

Todo:
  * Add vegeterian menu options
  * Add brunch, and remove the b/l/d/ on weekends.
  * Instead of seeding from a database, users should add menu items by
    themselves.