fix JB_json_v1 config backcompat store type guessing for .jsonz urlTemplates
fix JB_json_v1 config backcompat store type guessing for .jsonz urlTemplates

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