Cleaning up more style.
Merge pull request #210 from nstielau/more_style

Cleaning up more style.
More rubocopping.
Merge pull request #211 from nstielau/even_more_style

More rubocopping.
More style fixes for rubocop.
Merge pull request #212 from nstielau/moar_style

More style fixes for rubocop.
Adding message about rubocop to readme.
Merge pull request #213 from nstielau/rubocop_readme

Adding message about rubocop to readme.
Built metrics plugin for Solr4.
Merge pull request #214 from Marketfish/solr4

Built metrics plugin for Solr4.