Create initial git repo and add submodules at preferred versions.

These preferred versions are based on the information contained in the
OpsWorks ElasticSearch blog post: http://blogs.aws.amazon.com/application-management/post/Tx3MEVKS0A4G7R5/Deploying-Elasticsearch-with-OpsWorks
Remove README
Merge commit 'fbf515c5dec2f5ab403e63905766846a64812cef'

* commit 'fbf515c5dec2f5ab403e63905766846a64812cef':
  Remove README
  Create initial git repo and add submodules at preferred versions.