trunk,nnet1 : adding support to --one-silence-class, however this is probably...

trunk,nnet1 : adding support to --one-silence-class, however this is probably not the main problem in sMBR step, need to have a look at this...



git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4919 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8