Fix TestUtils.clearOutputDir() so it deletes both files and directories
Fix TestUtils.clearOutputDir() so it deletes both files and directories

amwenger/igv,igvteam/igv,itenente/igv,igvteam/igv,igvteam/igv,itenente/igv,godotgildor/igv,itenente/igv,godotgildor/igv,itenente/igv,igvteam/igv,amwenger/igv,godotgildor/igv,amwenger/igv,amwenger/igv,godotgildor/igv,igvteam/igv,amwenger/igv,godotgildor/igv,itenente/igv