4401. [misc] Change LICENSE to MPL 2.0.
update copyright notice
added notes about importing vendor source to contrib
copyright update
new URL for the copyright notice
Trailing whitespace trimmed. Perhaps running "perl util/spacewhack.pl in your own CVS tree will help minimize CVS conflicts. Maybe not. Blame Graff for getting me to trim all trailing whitespace.
added notes about release branch usage
update_copyrights
created file with notes on CVS usage