As long as this plugin is not deployed to maven central we use this way to publish releases.
The releases for the different Elasticsearch releases can be downloaded here:
http://hkorte.github.io/significance-showcase/es-1.1.1.zip
http://hkorte.github.io/significance-showcase/es-1.2.0.zip
You can install this plugin to Elasticsearch using this command:
On ES 1.1.1:
bin/plugin --url http://hkorte.github.io/significance-showcase/1.1.1.zip --install significance-showcase
On ES 1.2.0:
bin/plugin --url http://hkorte.github.io/significance-showcase/1.2.0.zip --install significance-showcase
Intoduction slides: http://hkorte.github.io/significance-showcase/presentation/
More info and source code: https://github.com/hkorte/significance-showcase