make modencode example trackList.json more strict JSON
make modencode example trackList.json more strict JSON

Arabidopsis-Information-Portal/jbrowse,Arabidopsis-Information-Portal/jbrowse,limeng12/jbrowse,erasche/jbrowse,SuLab/jbrowse,Arabidopsis-Information-Portal/jbrowse,erasche/jbrowse,nathandunn/jbrowse,SuLab/jbrowse,SuLab/jbrowse,nathandunn/jbrowse,erasche/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,erasche/jbrowse,nathandunn/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,limeng12/jbrowse,nathandunn/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,limeng12/jbrowse,SuLab/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,limeng12/jbrowse,limeng12/jbrowse,Arabidopsis-Information-Portal/jbrowse,limeng12/jbrowse,nathandunn/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,erasche/jbrowse,SuLab/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,GMOD/jbrowse,GMOD/jbrowse,GMOD/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,SuLab/jbrowse,Arabidopsis-Information-Portal/jbrowse,limeng12/jbrowse,Arabidopsis-Information-Portal/jbrowse,erasche/jbrowse,SuLab/jbrowse,Arabidopsis-Information-Portal/jbrowse,limeng12/jbrowse,GMOD/jbrowse,GMOD/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,erasche/jbrowse,erasche/jbrowse