Add ability to sort FancyIndexed directories by the different

	column values, ascending or descending.  Also update the new
	features page with some stuff that got missed.

Reviewed by:	Marc Slemko, Dean Gaudet, Alexei Kosut


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@78779 13f79535-47bb-0310-9956-ffa450edef68