revise to handle cases with no blob above threshold in new v2 feature system
revise to handle cases with no blob above threshold in new v2 feature system

git-svn-id: https://beagle.whoi.edu/svn/ifcb/trunk@759 9f5e5bc8-6430-4f94-ad00-aad15e9f9366

Former-commit-id: 39d0fb2db047a907419464e0331a0038ef6bcea2
hsosik/ifcb-analysis,hsosik/ifcb-analysis,hsosik/ifcb-analysis,hsosik/ifcb-analysis,hsosik/ifcb-analysis