remove extra responsive link in application layout
remove incorrect comment in application layout
replace twitter-bootstrap-rails with bootstrap-sass
improve navbar to use bootstrap 3
bug fix
improve home page form to use bootstrap 3
simple bug fix in layout navbar
improve sign in form to use bootstrap 3
change alert-error to alert-danger
change the password filed in sign in from text to password
redirect to current user if signed in when visiting root path
render error messages in sign up form
simple bug fix. change error flash key to danger to support bootstrap 3
change shared/error partial to show only 1 and best suited error message
Merge branch 'responsive' into develop