Minor code cleanup to address elint issues.

Minor code cleanup to address elint issues.

* Makefile (test): Don't build README files during this rule.  Remove
  spurious "make clean" statement.

* muse-colors.el (muse-colors-tags): Make sure that this appears in the
  `muse-colors' group, and give it a proper type.

* muse-mode.el: Wrap condition-case around `eval-when-compile'.

* examples/johnw/muse-johnw.el (muse-my-html-insert-contents,
  muse-my-journal-find-entries): Replace `string-to-int' with
  `string-to-number'.

* muse-html.el (muse-html-insert-contents): Ditto.

* muse-journal.el (muse-journal-html-munge-buffer,
  muse-journal-latex-munge-buffer): Ditto.

* muse-journal.el (muse-journal-rss-munge-buffer): Ditto.

* muse-publish.el (muse-publish-markup-footnote,
  muse-publish-contents-tag): Ditto.

* muse-regexps.el (muse-extreg-usable-p): Ditto.
git-archimport-id: mwolson@gnu.org--2005/muse--main--1.0--patch-53