replaced printTopWords, faster and tolerates topics with < numWords types
replaced printTopWords, faster and tolerates topics with < numWords types

RWArunde/Mallet,carschno/Mallet,RWArunde/Mallet,ohjeyong/mallet,steveash/Mallet,ohjeyong/mallet,palm-toolkit/Mallet,zxsted/Mallet,RWArunde/Mallet,carschno/Mallet,zxsted/Mallet,lewg/Mallet,lewg/Mallet,ohjeyong/mallet,steveash/Mallet,palm-toolkit/Mallet,lewg/Mallet,zxsted/Mallet,carschno/Mallet,steveash/Mallet