Use relative path to typescript-json-schema or else Travis fails
Use relative path to typescript-json-schema or else Travis fails

uwdata/vega-lite,uwdata/vega-lite,uwdata/vega-lite,vega/vega-lite,uwdata/vega-lite,vega/vega-lite,vega/vega-lite,vega/vega-lite,uwdata/vega-lite,vega/vega-lite