NPE protection on FeatureTrack.loadFeatures
NPE protection on FeatureTrack.loadFeatures

igvteam/igv,igvteam/igv,igvteam/igv,igvteam/igv,amwenger/igv,amwenger/igv,amwenger/igv,amwenger/igv,amwenger/igv,igvteam/igv