Fix several startup and compile errors.
* lisp/muse-wiki.el ("muse-publish"): Use correct name of function. This
fixes an error that occurred during startup.
* lisp/muse-regexps.el (muse-ignored-extensions-regexp)
(muse-update-ignored-extensions-regexp, muse-ignored-extensions): Move
to muse.el.
* lisp/muse.el (muse-update-ignored-extensions-regexp): Fix ordering so
that the nasty compile errors go away. Fix a few typos.
(muse-ignored-extensions): Fix docstring.
(muse-file-extension): Move this higher in the file.
git-archimport-id: mwolson@gnu.org--2005/muse--main--1.0--patch-102