(feat) Add POST request to server for customer signup
(feat) Add POST request for restaurant sign-up
(feat) Customer's search criteria submit button sends GET request to server
(feat) Customer's search criteria submit redirects to search results page once data is received from GET request (via promise)
(feat) Restaurant's availability toggle sends POST request to server
(feat) Checking a restaurant on customer's search results sends POST request with chosen restaurant name
(feat) POST request is sent with userID when restaurant checks an interested customer.
(refactor) chooseRestaurant sends restaurantID instead of restaurantName.
(refactor) Change factory names to singular version to accurately match usage (e.g. 'Restaurants' to 'Restaurant')
(cleanup) Cleans up comments
(refactor) Change 'userID' to 'customerID'
(refactor) Create a global variable for server's URL. Remove header for requests for now.
Merge pull request #28 from lmle/feat/client

feat/ Send requests to server, minor refactoring