Update multi_clust() test to use multiClust class and test more data - Adds the test of the iris data set and a contrived boolean data   set to make sure that multi_clust() properly detects the boolean   data and gets the correct k_best.
Update multi_clust() test to use multiClust class and test more data
- Adds the test of the iris data set and a contrived boolean data
  set to make sure that multi_clust() properly detects the boolean
  data and gets the correct k_best.

catterbu/receptormarker,catterbu/receptormarker,nsh87/receptormarker,catterbu/receptormarker,nsh87/receptormarker,catterbu/receptormarker,nsh87/receptormarker,catterbu/receptormarker,nsh87/receptormarker,nsh87/receptormarker