Add auth controller and service
Add login and signup states with new templates
Add signup and login handlers for login and signup requests.  Both handlers return jwt token as a response
Add AuthTokenFactory to set or remove auth-token from local storage
Protect all pages that require user authentication
Rename 'AuthCtrl' to 'UserCtrl'
Update README.md. Move requirements.txt
Add comparePassword instance method to User model
signup and signin handlers now return User object as a response (not including senstive information such as password)
Merge branch 'master' of https://github.com/germTheory/germTheoryWebApp into mobile/auth
Merge pull request #282 from kmeurer/master

Update README.md. Move requirements.txt
Merge pull request #279 from ryojiosawa/mobile/auth

Support user authentication in mobile app
Merge branch 'master' of https://github.com/germTheory/germTheoryWebApp