Fixed slot names in KTCorrelator to match others in Katydid.
Fixed two bugs in the clustering algorithm in KTMultiSliceClustering.
Added some debug printing.
Added cluster framing to KTMultiSliceClustering.
Minor tweaks to KTROOTTreeWriter and the candidates type writer.
Added non-queueing slots to KTMultiSliceClustering, and fixed a minor bug.