mg name option for pair-join with no metadata
mg name option for pair-join with no metadata

wilke/MG-RAST,paczian/MG-RAST,MG-RAST/MG-RAST,wilke/MG-RAST,MG-RAST/MG-RAST,MG-RAST/MG-RAST,teharrison/MG-RAST,teharrison/MG-RAST,teharrison/MG-RAST,paczian/MG-RAST,MG-RAST/MG-RAST,paczian/MG-RAST,paczian/MG-RAST,MG-RAST/MG-RAST,teharrison/MG-RAST,wilke/MG-RAST,wilke/MG-RAST,wilke/MG-RAST,teharrison/MG-RAST,wilke/MG-RAST,wilke/MG-RAST,paczian/MG-RAST,teharrison/MG-RAST,paczian/MG-RAST