Add a FoldersFirst keyword to the IndexOptions directive, which
	causes subdirectories to always appear first in FancyIndexed
	listings.

Reviewed by:	Ryan Bloom, Martin Kraemer, Jim Jagielski


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@84205 13f79535-47bb-0310-9956-ffa450edef68