Upgraded to Elasticsearch 2.1.0.

Upgraded to Elasticsearch 2.0.0.

Upgraded to JRE8 Update 60.

Upgraded to Elasticsearch 1.7.2.

Added missing tailored run script.

Disabled multicast discovery.

Configuration is now powered by environment variables.

Upgraded to Kubernetes discovery plug-in 1.3.0.
Fixes #1

Upgraded to Elasticsearch 1.7.1.

Upgraded to Elasticsearch 1.7.0.

Upgraded to JRE 8 Update 51.

Upgraded to Elasticsearch 1.6.0 and plug-in 1.2.1.

Updated instructions.