We were there last year for our honeymoon and brought a copy of our marriage license with us, but never needed it. We got champagne in our room and flower pedals on our bed through out the week. I would say bring it just in case, because what could having a photocopy hurt? Even though I don't think you'll need it.
Also, we will be there for our one year anniversary on June 11th as well, so we'll see you there! ENJOY!
We went on our honeymoon the day after our wedding. I was able to show them our registry on my phone and still got the perks. I think you can bring anything with your names and the date. Like an invitation or a program or something.