Changed gitignore
Added user auth
Added some new models and skeleton files
Merge pull request #18 from Warrenty/master

Auth Services, html, and Controller
Merge pull request #19 from xue0chao/master

Created new branch to pull to
Changed server port
User preferences backend operations - first draft
Merge pull request #23 from xue0chao/master

Added user preferences and like/disliked image operations on the server
Update image-restaurant-controller.js

Added some documentation.
Update controllers.js

Added some comments
Update services.js

Added a reminder to add a redirect if token exists