Potential Memory Leak

[joshheinrichs]

While I was looking into #14 I came across this page which says that if you're using gorilla/sessions aren't using gorilla/mux, that you need to wrap your handlers with context.ClearHandler to avoid a memory leak:

http://www.gorillatoolkit.org/pkg/sessions

Not sure if this is being dealt elsewhere since I'm still new to Go, but I thought it might be worth bringing to your attention.