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


Former-commit-id: 4149e2e0b6bb1e8f354b30de92689748da56dc6b
jgraph/draw.io,jgraph/draw.io,jgraph/draw.io,jgraph/drawio,jgraph/draw.io,jgraph/drawio,jgraph/draw.io,jgraph/drawio