cgi-bin: Add title attribute to input type image where missing

cgi-bin: Add title attribute to input type image where missing

Almost all of <input type="image"... has both an alt and a
title attribute, but some are missing title, and when the icon
is not very clear, it makes it harder to understand what the icon
does. By adding title, the browser displays text when mouse pointer
is over the icon.

Also add missing quotes for alt and title attributes where needed.