added option to allow duplicate metagenome names, in cases where metadata is being updated and mapped by metagenome ids
added option to allow duplicate metagenome names, in cases where metadata is being updated and mapped by metagenome ids

wgerlach/pipeline,wgerlach/pipeline,teharrison/pipeline,teharrison/pipeline,wgerlach/pipeline,MG-RAST/pipeline,teharrison/pipeline,MG-RAST/pipeline,MG-RAST/pipeline