Show reference position in coverage popups.  Fixes #233
Show reference position in coverage popups.  Fixes #233

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