clusterContigs now properly instantiates LinkageGroupList, so mergeLinkageGroups won't crash anymore.
clusterContigs now properly instantiates LinkageGroupList, so mergeLinkageGroups won't crash anymore.

oneillkza/ContiBAIT,rareaquaticbadger/ContiBAIT,rareaquaticbadger/ContiBAIT,oneillkza/ContiBAIT