open key val

I had wanted to use OpenKeyval for a project, but it didn't seem to be working, so I added this functionality to view-count — I suppose it should be it's own server, but it's pretty similar functionality, and it's a free heroku server, which has a tendency to fall asleep, so overloading it is more likely to keep it awake ;)

here's how to set a value: http://view-count.herokuapp.com/set/MY-KEY?MY-VALUE (or POST with MY-VALUE in the post body)

here's how to get a value: http://view-count.herokuapp.com/get/MY-KEY