Handling to install java on worker server

Hi Rune,

Just realized that we need Java installed on the worker server to be able to run a couple jars for orm-epubrenderer. So this pull request adds the Java recipes provided by Opscode (https://github.com/opscode-cookbooks/java) and includes them into the configure_localhost recipe.

This is my first time working with Chef, so could you review and see if I did everything correctly? I tested on my local vagrant box, and everything looked good to me.

Thanks,
Sanders