muse-latex: Rough hack to escape most specials properly.
* lisp/muse-latex.el (muse-latex-markup-regexps): Replace several
characters throughout the whole document.
(muse-latex-markup-specials): Only escape "\" here, so as not to mess
up \begin{verbatim} regions.
(muse-latex-markup-texttt-specials): New option containing characters
to escape in \texttt regions.
(muse-latex-fixup-texttt): New function that escapes extra specials in
\texttt regions.
(muse-latex-finalize-buffer): Call muse-latex-fixup-texttt.
git-archimport-id: mwolson@gnu.org--2005/muse--rel--3.02--patch-9