html-table colspan not exported

[Bill Gribble]

On Fri, Apr 27, 2001 at 10:37:38AM -0700, Christian Stimming wrote:
> I just tried to export some of our html-table reports. I discovered that 
> the colspan-option of each table cell doesn't exist in the exported file, 
> thus the layout is totally screwed up...

There's no reason to ask gtkhtml for the HTML, since we have it around
in the report object.  We could easily change the export function to
save the report's cached HTML text.

b.g.