Incorperate feedback/requests for a bit more flexibility: 1)allow any domain...

Incorperate feedback/requests for a bit more flexibility: 1)allow any domain and IP address for the SNI demonstration and 2) make the index.html sample files a bit easier to recognize.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@649043 13f79535-47bb-0310-9956-ffa450edef68