User playlists

[mukkachaitanya]

Implemented User playlists. Some more changes necessary for signup and user management. Please try the patch and follow up for any bugs or required changes.

[mukkachaitanya]

Signup doesn't work properly. Run this code in the dev-console once the page loads and then create account

$('.message a').click(function() {
              $('form').animate({
                  height: "toggle",
                  opacity: "toggle"
              }, "slow");
          });
      });

Then redirect manually to /login to login.
I am working to fix this.