* doc/emacs/search.texi (Replacement and Lax Matches): Document which commands are affected by 'replace-character-fold'. (Lax Search): Add a cross reference to "Replacement and Lax Matches". Improve wording. Fix lost extra whitespace. (Search Customizations): Improve wording. (Bug#22036) See also comments in http://lists.gnu.org/archive/html/emacs-devel/2015-11/msg02376.html. * lisp/replace.el (query-replace, query-replace-regexp) (query-replace-regexp-eval, replace-string, replace-regexp): Mention 'replace-character-fold' in the doc strings.