Bug 16338 - Remove the use of "onclick" from the lists template

Bug 16338 - Remove the use of "onclick" from the lists template

This patch removes the use of "onclick" from the list delete button,
moving the event definition into the script.

Also changed: Removed some unnecessary link markup; Added some
whitespace around the action buttons.

To test, apply the patch and go to Lists.

Click the "Delete" button next to any list. You should be prompted to
confirm the deletion. Verify that both confirming and canceling the
deletion works correctly.

Signed-off-by: Aleisha <aleishaamohia@hotmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>