add grocery_list database, add has_one and belongs_to assocaition between grocery_list and fridge
revise assocation between lists and fridges to has_many
add grocery lists controller, ability to create new grocery list
add GroceryList#index and GroceryList#show, add views for show, and index
add association between grocery lists and items, add foreign key migration
add add item to grocery list form, add flash error messages for bad item
add ability to view items in grocery list with sorted cartegories
add validation of unique item names in grocery list
add validations for list title, add flash feedback for when adding list
fix database cleaner so that it cleans before and after each it, fix items_controller test
add ability to see all groceries in side bar with links to each list
add delete grocery button, need to fix where it route to
add working delete grocery list link
add item to gl feature, delete item from gl feature, need to fix bug where item added to gl is also added to fridge
fix bug: no longer shows items on gl in fridge as well
all tests passing
resolve merge conflicts; all tests passing
remove unnecessary grocery list view, revised seed data phone numbers
fix delete grocery list item button
add back button to GL show