Add in MaxRangeOverlaps and MaxRangeReversals to accomodate

more control over acceptable Range headers:

        See: http://trac.tools.ietf.org/wg/httpbis/trac/ticket/311

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1169756 13f79535-47bb-0310-9956-ffa450edef68