Pick up the copyright notice and some additional attributes/values, and
mark some attributes as no longer being Wireshark additions. Change
some names to match the FreeRADIUS names.
Mark some URLs as dead links, and try to supply replacements; use the
Wayback Machine for others.
Preserve our fixes and enhancements.
Change-Id: I000cf05682506ed0db9b0fff856998479ee0dfa4
Reviewed-on: https://code.wireshark.org/review/21831
Reviewed-by: Guy Harris <guy@alum.mit.edu>