Enable regex support in mod_alias with AliasMatch, ScriptAliasMatch and

RedirectMatch directives.

New syntax for regex support in http_core: <DirectoryMatch>,
<FilesMatch>, <LocationMatch> sections.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@78559 13f79535-47bb-0310-9956-ffa450edef68