Make a distinction between implicit and explicit links at publish-time.

Make a distinction between implicit and explicit links at publish-time.

* lisp/muse-html.el (muse-html-escape-string): Ignore other arguments.

* lisp/muse-http.el (muse-http-prepare-url): Handle `explicit' argument.

* lisp/muse-publish.el (muse-publish-url, muse-publish-insert-url): Pass
  `explicit' argument.

* lisp/muse-publish.el (muse-publish-markup-link): Determine whether or
  not we are dealing with an explicit link.

* lisp/muse-publish.el (muse-publish-prepare-url): Ignore other arguments.

* lisp/muse-wiki.el (muse-wiki-transform-interwiki): Take `explicit'
  argument, but ignore it.

* lisp/muse-wiki.el (muse-wiki-transform-wikiword): Only apply transforms
  when link is not explicit.
git-archimport-id: mwolson@gnu.org--2005/muse--main--1.0--patch-107