Pull latest event from the API onto the homepage

@justindeguzman @maxdumas @irisyuan @AbhiAgarwal @grungerabbit If y'all haven't checked out [Promises](http://www.slideshare.net/domenicdenicola/promises-promises) yet, and [Q](https://github.com/kriskowal/q) in particular, you should; they're kinda awesome!