Replcate IndexTank with ElasticSearch
Elastic Search integration
Merge branch 'feature/es' of github.com:cloud66/help

Conflicts:
	_plugins/indexer.rb
Merge branch 'master' of github.com:cloud66/help
ignore rvm files
re-double-added-again the ES changes
Merge branch 'master' of github.com:cloud66/help into develop