Added elasticsearch gateway

Conflicts:
	src/services/govendor
Add version aliases and supported_versions to elasticsearch template

Conflicts:
	src/services/govendor
Added elasticsearch node

Conflicts:
	config/blobs.yml
	src/services/govendor
Fix elasticsearch package and add java7 dependency

Conflicts:
	config/final.yml
	src/services/govendor
Added 0.20 support to elasticsearch_node
Add elasticsearch blobs
Merge pull request #21 from rkoster/add-elastic-search-service-compatible-version-2

Add elastic search service compatible version 2