trunk: various changes that relate to G.fst ilabel sorting.

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4619 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk: nnet2 setup: adding train_pnorm_multisplice2.sh which uses the new, compact egs format.

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4620 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk: nnet2 training scripts: minor script fixes.

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4622 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk: minor updates to nnet2-related scripts; adding multisplice example for RM.

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4624 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk: changes to compressed-matrix code: make it more time and space efficient for matrices with <= 8 rows; bug fix (won't affect any recipes).

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4626 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
Various script fixes; new version of an nnet-retraining script.

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4627 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk: perturb the speed of the data(using sox)

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4630 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk: add the example script which demonstrates how speed perturbation of the data helps the nnet training

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4631 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk: add the results at the end of run_nnet2_perturb_speed.sh

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4636 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk: add the results at the end of run_nnet2_perturb_speed.sh

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4637 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk: remove outdated option --use-silphones false from egs/timit/s5/local/run_dnn.sh

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4638 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8