Added options to input index file when merging mate-pairs and to remove or retain non-overlapping mate-pairs.  Also, renamed button.
Added options to input index file when merging mate-pairs and to remove or retain non-overlapping mate-pairs.  Also, renamed button.

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