Removed the timezone for each post
Users can view all their comments on their profile page
Added some validation on creating a post
Show posts with markdown

Now, users can view posts with markdown

1. added the redcarpet gem to do markdown render
2. added a markdown helper method in application_helper
Added some validation on creating a post
Merge branch 'master' of heroku.com:secure-badlands-5737
Added a mailer for reseting password

when a user try to reset his/her password, a resetting email will be
sent to the users email
now users can receive an email to reset their password
added a testing email address
Now users can rest their passwords
moved the updating password into a new controller update_passwords_controller
Modified part of the password management layout
slight modification, the password saving problem still havent saved
simplified the redirect_to message
Did some code reconstruction
users now login with their email
modified the password reset method
fixed the reset password problem
users now login with their email
solved the bug