updated m5nr download script - need source versions hardcoded
updated m5nr download script - need source versions hardcoded

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