1. Rspec bug in User_controller fixed
Signup and Homepage - Ver2.0
Merge branch 'master' of github.com:Silenthillnight/cs169
1. csrf complain solved by removing :via and :default
1. csrf complain solved by removing :via and :default.  2. Restore and modified part of the user_controller to avoid merge conflict
Merge branch 'master' of github.com:Silenthillnight/cs169
Created sessions but not 100% tested
Merged user session information with iteration 1 code
1. Added session part to get user id in Registration#register,drop,view method. 2. Also slightly modified the key names for the return json dict in the above method