Introduce :link-suffix. muse-wiki: Don't mangle acronyms in titles.

Introduce :link-suffix. muse-wiki: Don't mangle acronyms in titles.

* examples/mwolson/muse-init.el: Update.

* muse-blosxom.el ("blosxom-html", "blosxom-xhtml"): Use :link-suffix to
  ensure that links to other pages in this project are given the proper
  extension.

* muse-latex.el ("pdf", "pdfcjk"): Ditto.

* muse-journal.el (muse-journal-rdf-header): Use muse-publish-link-name
  instead of muse-publish-output-name.

* muse-publish.el (muse-publish-link-name, muse-publish-link-file): New
  functions that consult the :link-suffix when returning the name of the
  link (or the complete file name for the latter function).  If
  :link-suffix does not exist, use :suffix.  This should help Muse be
  able to handle some more usage scenarios.
  (muse-publish-prepare-url): Use muse-publish-link-name instead of
  muse-publish-output-name.

* muse-wiki.el (muse-wiki-resolve-project-page): Use
  muse-publish-link-file instead of muse-publish-output-file.
  (muse-wiki-publish-pretty-title): Don't space-separate capitalized
  letters.  The old behavior was not friendly to acronyms.
git-archimport-id: mwolson@gnu.org--2005/muse--main--1.0--patch-214