Done registrations new page
Remove duplicate html to shared links
Update bootstrap helper fix for alert component
Add basic coffee script file structure and common package in application.coffee
Add admin boolean option to user table
Add admin valid for system namespace
Add devise async setting to development.rb and disable devise-async when development env
Add letter_opener gem
setup devise signup strong params in devise bsae controller
Fix devise views
Fix code style use ruby beauty on sublime text 2