Added Ruby 1.9.3 to Travis configuration.
Added Ruby 1.9.3 to Travis configuration.

chrisortman/koala,lucaskds/koala,lisa-lina/koala,mateusrevoredo/koala,adparlor/koala,morgoth/koala,sideci-sample/sideci-sample-koala,hendricius/koala,Loke155/koala,christer155/koala,samnang/koala,supriyantomaftuh/koala,sancopanco/koala,arsduo/koala