Feature/elasticsearch

Plain simple default elasticsearch support (issue #8)
Java is also added through a community cookbook. If this needs to change to your own cookbook, you can remove the depended cookbooks "aws" and "windows".

In the Vagrantfile, I added a custom clustername, but I just don't work. The name of the VM is now the clustername and not elasticsearch_<name> . I haven't find the reason why this won't work.

I added the depended cookbooks instead of using Berkshelf to minimize the dependencies of Sneakers.

Greetings!