trunk: minor edit (add comments)

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4699 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk: modify Makefile to give more informative error message if OPENFST_VER is not defined.

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4700 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8
trunk,steps: adding the 'delta_opts' so there can be non-default delta-order, writing prettier kwslist with more precision of scores


git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@4701 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8