Add baseline option for viewlimits,  e.g.  viewlimits=0:2:6.  Fixes #584
Add baseline option for viewlimits,  e.g.  viewlimits=0:2:6.  Fixes #584

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