Merged from mwolson@gnu.org--2006 (patch 158-164)

Merged from mwolson@gnu.org--2006 (patch 158-164)

Patches applied:

 * mwolson@gnu.org--2006/muse--main--1.0--patch-158
   Make muse-publish-markup-buffer usable even with no current file.

 * mwolson@gnu.org--2006/muse--main--1.0--patch-159
   Fix publishing of blank table fields.

 * mwolson@gnu.org--2006/muse--main--1.0--patch-160
   Make links to files in subdirectories work.

 * mwolson@gnu.org--2006/muse--main--1.0--patch-161
   Fix publishing bug introduced in last patch.

 * mwolson@gnu.org--2006/muse--main--1.0--patch-162
   muse-latex: Make publishing of <contents> tags optional.

 * mwolson@gnu.org--2006/muse--main--1.0--patch-163
   Make space around emdash optional.

 * mwolson@gnu.org--2006/muse--main--1.0--patch-164
   Make escaping of brackets in links work properly.
git-archimport-id: mwolson@gnu.org--2006-muse-el/muse-el--devel--0--patch-82