Update .travis.yml
Update .travis.yml

to restore a correct and simple build

emoncms/emoncms,inverse/emoncms,inverse/emoncms,chaveiro/emoncms,chaveiro/emoncms,emoncms/emoncms,chaveiro/emoncms,emoncms/emoncms,inverse/emoncms,chaveiro/emoncms,emoncms/emoncms,inverse/emoncms,emoncms/emoncms