Sync apache-site/ABOUT_APACHE.html and apache-1.2/ABOUT_APACHE

with contents of apache-1.3/ABOUT_APACHE.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@80907 13f79535-47bb-0310-9956-ffa450edef68