[skip appveyor] fix travis
[skip appveyor] fix travis

jgraph/draw.io,flyingCloudRain/drawio,jgraph/drawio,jgraph/draw.io,flyingCloudRain/drawio,flyingCloudRain/drawio,jgraph/drawio,jgraph/draw.io,jgraph/draw.io,flyingCloudRain/drawio,flyingCloudRain/drawio,jgraph/drawio,jgraph/draw.io