Add angular-ui-bootstrap
Add angular-ui templates and use sass to build style.css
Add gitignore for sass-cache dir
Create AuthService for authentcation related functions
Separate user content categories by controllerand tabs
Add node modules bcrypt, express-validator
- updates express and node versions in package.json
- encrypts user password during registration using bcrypt
- add input validation using express-validator
Merge branch 'dev'