4401. [misc] Change LICENSE to MPL 2.0.
[master] avoid double-free in rrl - RRL could assert when freeing qname - also, changed test addresses from 192.168/16 to 192.0/16
update copyrights
[master] DNS RRL 3494. [func] DNS RRL: Blunt the impact of DNS reflection and amplification attacks by rate-limiting substantially- identical responses. [RT #28130]