Fix create_resources to work with Puppet 3.2.

Puppet 3.2 didn't like the leading ```::``` in ```create_resources('::elasticsearch::instance', $x_instances)``` for some reason. Taking it out works for all versions.

I have enabled the Travis CI builds against my fork now so I will pick these up before I raise a PR in future. Cheers.

https://travis-ci.org/philipwigg/puppet-elasticsearch/builds/34222430