adding ruby 2.1 support to travis.yml
adding ruby 2.1 support to travis.yml

voxpupuli/puppet-kafka,Jana-Mobile/puppet-kafka,puppet-community/puppet-kafka,zouzias/puppet-kafka,LionelCons/puppet-kafka,vend/puppet-kafka,zouzias/puppet-kafka,LionelCons/puppet-kafka,voxpupuli/puppet-kafka,GabrielNicolasAvellaneda/puppet-kafka,hundredacres/puppet-kafka,vend/puppet-kafka,vend/puppet-kafka,puppet-community/puppet-kafka,hundredacres/puppet-kafka,puppet-community/puppet-kafka,Jana-Mobile/puppet-kafka,LionelCons/puppet-kafka,GabrielNicolasAvellaneda/puppet-kafka,voxpupuli/puppet-kafka,GabrielNicolasAvellaneda/puppet-kafka,zouzias/puppet-kafka,Jana-Mobile/puppet-kafka,hundredacres/puppet-kafka