lynx-dev ISMAP/USEMAP patch

[Laura Eaves]

Ok -- I tried it on an edited version of http://www.wai.edu/
(edited to remove the alt string) and the ISMAP/USEMAP stuff seems to work.
Now in the absence of alt string, lynx will print
        [ISMAP:whatever.gif]
where whatever.gif is hte SRC of the IMG.  Similarly for USEMAP.

So the patch I sent yesterday is orrect.
--le