Permit table generation to be disabled for a single Muse page.
* lisp/muse-latex.el (muse-latex-markup-table): If we don't get any table
data, don't publish the table.
* lisp/muse-texinfo.el (muse-texinfo-markup-table): Ditto.
* lisp/muse-xml-common.el (muse-xml-markup-table): Ditto.
* lisp/muse-publish.el (muse-publish-table-fields): If the
"disable-tables" publishing directive exists for the current page, do
not generate a table.
* muse.texi (Tables): Mention that table generation can be disabled for a
single page.
git-archimport-id: mwolson@gnu.org--2006/muse--main--1.0--patch-90