update travis.yml to require 18mode and 19mode for jruby
update travis.yml to require 18mode and 19mode for jruby
pedrogarrett/axlsx,alexanderfrankel/axlsx,nilbus/axlsx,randym/axlsx,VueOps/axlsx,sh-ft/axlsx,romuloceccon/axlsx,Debiancc/axlsx,bradstewart/axlsx,sr-education/axlsx,legitscript/axlsx,cloudbi/axlsx,mromulus/axlsx,raghavendra-prithvi/axlsx,kappiah/axlsx,clarkcutler/axlsx,woto/axlsx