lab 3: shop: updated ShopProfile to include latitude and longitude
lab 3: driver: add lat and long to FlowerShopProfile and updated shops/list
page to request the lat/long of registered shops; shop: updated manage.jsp
to display the lat/long of the shop.
lab 3: driver: added ExternalAPINotificationsController to print out the data
received in a Foursquare checking notification (push); added foursquare push ID to apiclientconfig.json, but haven't updated the code to parse it yet.