Support "MM" and "ML" modified base tag names in anticipation of spec release
Support "MM" and "ML" modified base tag names in anticipation of spec release

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