#2 table 'columns' attribute

[Andy Murren]

In WML, the 'columns' attribute of the 'table' tag is
required. So maybe it's better not to use the AUTOLOAD
subroutine for that, but rather write a separate table
method which requires the attribute or infer it from the
content -- since WML tables do not have column or row
spanned cells, that's not hard to do.