Fix #4973: muse-project-ignore-regexp too aggressive
* lisp/muse-project.el (muse-project-ignore-regexp): Note that
case-fold-search should be nil before using this regexp.
(muse-project-recurse-directory, muse-project-file-entries)
(muse-project-of-file): Set case-fold-search to nil before matching
against muse-project-ignore-regexp. Thanks to G. J. Teale for the
report.
* muse-registry.el (muse-registry-make-new-registry): Ditto.
git-archimport-id: mwolson@gnu.org--2005/muse--main--1.0--patch-346