Squashed commit of the following:

commit ca4defa086a411094f9e90fbe3acef337d6613bb
Author: Praburaj <praburaj.t@microsoft.com>
Date:   Wed Sep 24 15:13:28 2014 -0700

    Enabling account validation, 2FA, Forgot password in the sample

    Some identity helpers are still missing. Work arounds are applied to enable them working. Will clean it up as soon as identity helpers are available.

commit 6072c45537946c29588cfad92ce5e69ecd21656b
Author: Praburaj <praburaj.t@microsoft.com>
Date:   Tue Sep 23 20:08:59 2014 -0700

    Using QueryHelpers.ParseQuery for parsing query string.

    Removed the helpers implemented in the test project.

commit 632dd8d43fafb6307b3e504731431479aa96ec50
Author: Hao Kung <haok@microsoft.com>
Date:   Tue Sep 23 17:24:42 2014 -0700

    Remove comment

commit 913fd251a39edcf0182b36be17879484ae90fd90
Author: Hao Kung <haok@microsoft.com>
Date:   Tue Sep 23 17:23:12 2014 -0700

    React to identity changes