trunk:added a dnn ensemble training recipe for ...
trunk:added utils/filter_scps.pl for file filte...
sandbox/bolt:added stm prep script for bolt_man...
sandbox/bolt:updated bolt_mandarin training recipe
sandbox/xzhang:added DNN training recipe on com...
trunk:minor fix in local/nnet2/run_nnet2.sh
trunk:minor modifications in steps/nnet2/train_...
trunk:minor modifications in the sgmm2 training...