More 20x2 Chicago stuff and OSS.

Welp, it's been over a month since the last 20x2 Chicago, and I have a couple of new pieces of tech for the show. First up, a JavaScript/HTML slideshow framework to display pictures as pre-show entertainment. I was hoping to use some existing code so that I wouldn't have to maintain a new codebase, but was unable to find something that fit my needs, whic…