modified Gemfile to test heroku hostig
removed datamapper testing codes
added user_session model
added user_data to handle personal information
fixing up issues related to backup
projects page is now working
added json/xml support to projects url and redirection is properly going to the right url depending upon the environment
added proper begin rescue statements
I tested the authentication part in rails. I did a redirection to login page if the cookie expires in the middle.

I also send a logout API request to bw when rails back end API gets a logout request. I wasn't doing this earlier which was throwing errors when tried to login as a different user.