Fixes #39, don't run _base.rb for java.rb

Fixes #39, we don't need _base.rb for a java recipe. We probably could really use a 'rackspace java' cookbook that enables the customers to directly agree to the license and then give us the binaries to install on their systems.
Merge pull request #40 from martinb3/master

Fixes #39, don't run _base.rb for java.rb