Auto merge of #181 - olleolleolle:patch-2, r=indirect
Auto merge of #181 - olleolleolle:patch-2, r=indirect

Travis: jruby-9.2.0.0

This PR updates the CI matrix to use latest JRuby.

http://jruby.org/2018/05/24/jruby-9-2-0-0.html

bundler/gemstash,bundler/gemstash,bundler/gemstash