correcting typo mistake.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
adding Max Timing Option to Exams create page.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
adding jQuery Countdown Plugin.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
adding Timing option in exam controller.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>