updating site theme config. title,datatables.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
updating tutorials controller to use site theme on list view.

Signed-off-by: Gnanakeethan Balasubramaniam <gnanakeethan@gmail.com>
adding tutorial list view theme page.

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