added handeling of errors from compute_sequence_statistics.pl
added handeling of errors from compute_sequence_statistics.pl

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