Use recent JRuby release for Travis CI (#1730)
Use recent JRuby release for Travis CI (#1730)

Our JRuby CI runs have been errorring due to what I think is an issue
with an older `jruby-openssl` version.
repotag/gollum,repotag/gollum,gollum/gollum,repotag/gollum,repotag/gollum,rgroux/gollum,gollum/gollum,gollum/gollum,gollum/gollum,repotag/gollum,rgroux/gollum,gollum/gollum,rgroux/gollum,rgroux/gollum,rgroux/gollum