add user modelling
add secure password to user info
finish user model including password
Edit CSS with misplaced tags and etc.
Add built-in debug :)
Change some design (navbar, etc.)
Add user#show and test gem factory_girls
Add user#new page for sign up (not yet wrkg)
Edit layout and font, update user controller
Finish user signup and change some layout
Add SSL in production
Change some layout
Finish sign in - sign out
Finish user update information w/o authorizisation
Finish update user with authorization and friendly forwarding
Add showing users in seperate pages
Refactoring codes a little bit
Finish user destroy action
Merge linh-dev to master
Merge with Linh's repo and add users functions