Merge pull request #110 from nrobeR/master

(feat) Login and signup
(feat) Create splash page and set up routes to app
Merge pull request #111 from darabun/master

(feat) Create splash page and set up routes to app
(cleanup) Cleanup some code in routes.js
(feat) Add campaign routes and related request handlers
(inc) Add Campaign.all function that serves all the campaigns for now