Jive Copyrights in footers of Changelogs and Readmes

I have noticed that our Changelogs and Reames still have Jive Software copyrights at the bottom. Should we change them to something like:
Copyright © IgniteRealtime, 20xx-20xx
Or maybe just remove them?
@akrherz @guus

Well, we’re not the author, so I guess the proper thing to do is to keep the original copyright in. Maybe we can add what you suggest on stuff that we’ve changed? Have both lines, I mean.

I don’t think Jive Software cares anymore and having two copyrights might be confusing.

That might be true, but I don’t believe we can simply claim copyright - that’s bound to violate a law or something.