Thanks! I appreciate the heads up on the attribution...I knew that, and I actually included it in the code where I add the leaflet tile layer, but I guess I need to include a leaflet control to display the attribution. Here's the code I'm using:

https://gist.github.com/michaelcolenso/e89bc327cb31e7f0b6d9

I fixed the attribution. It was being covered up by the footer. Thanks for checking it out.

http://iswordfight.com/