[mglukhovsky]

Amazon changed the image format, and we've been working to update our images to use it. Here's some more detail: https://github.com/rethinkdb/marketplace-ami/issues/1

If you like, you can launch a 1.16 AMI, ssh into the instance, and run `apt-get update && apt-get install rethinkdb` to update to RethinkDB 2.1.

Thanks for being patient -- we'll get the official images updated soon.