corrected error raised by travis test
corrected error raised by travis test

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