Exclude some travis buildmatrix combinations
Exclude some travis buildmatrix combinations

marleyspoon/route_downcaser,substancelab/route_downcaser,substancelab/route_downcaser,marleyspoon/route_downcaser,carstengehling/route_downcaser,carstengehling/route_downcaser,substancelab/route_downcaser,carstengehling/route_downcaser,marleyspoon/route_downcaser