Changes to NIST 6Bone Reachability WWW Page

[6bone@snad.ncsl.nist.gov]

Both v4 and v6 traceroute dumps have been added to the NIST 6Bone
reachability page (http://www.antd.nist.gov/~ipng/NIST-6bone-status.html)
This should help in tracking down and debugging some routing problems.

Just click on a particular address to get to the traceroute information.

Other changes include:

	1. Statistics are gathered concurrently.  This was done in an 
           effort to keep up with the growing size of the 6bone.  
           The timestamp of when a site is actually pinged
           can be found at the bottom of the traceroute dump.

	2. The computed RTT information is no longer on the page.

	3. No longer print RTT when there is a 100% loss.

	4. The traceroute dump will report a bad address if detected.