clean up cyutil a little, c.f. #27
clean up cyutil a little, c.f. #27

bikash/pyhsmm,fivejjs/pyhsmm,fivejjs/pyhsmm,wgmueller1/pyhsmm,wgmueller1/pyhsmm,wgmueller1/pyhsmm,mattjj/pyhsmm,fivejjs/pyhsmm,mattjj/pyhsmm,theDataGeek/pyhsmm,theDataGeek/pyhsmm,bikash/pyhsmm,theDataGeek/pyhsmm,wgmueller1/pyhsmm,theDataGeek/pyhsmm,fivejjs/pyhsmm,theDataGeek/pyhsmm,wgmueller1/pyhsmm,fivejjs/pyhsmm,bikash/pyhsmm