Bump travis Ruby versions (#1906)
Bump travis Ruby versions (#1906)

* Bump travis ruby versions

* Also bump jruby version

opal/opal,opal/opal,kachick/opal,kachick/opal,Mogztter/opal,opal/opal,kachick/opal,Mogztter/opal,Mogztter/opal,Mogztter/opal,kachick/opal,opal/opal