Add event listener to save favorites button

When user clicks button, ajax request sent to server, which responds with rendered form. User enteres phone number and favorites are saved on server.
Fix localstorage error

- Add if statement to check if localstorage has favorite list defined
- If defined, draw the favorite list menu on page load
- If not, then let FavoriteList.list = []
Merge pull request #61 from spring-peepers-2014/submit-favorites

Fix localStorage error. Search now working.