UI now tracks a current shopping list and stringifies the objects for
sending as JSON request to API
Added ability to delete items from shopping list and tidied up list refreshing when removing items
Pulling shared shopping list from the server
Switch between the various shopping lists and delete popup. Still need
to handle how to nofity about a shared list
Fetching shopping list using backbone style url and router combination
Removed some console logs and initialised a new shopping list should the local fetch return empty and the reset leaves an empty list