add Netscape 7 to the list of supporting browsers

Submitted by: Michael Schr�pl <Michael.Schroepl@telekurs.de>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@97788 13f79535-47bb-0310-9956-ffa450edef68