* Use jsonl for cutsets in the librispeech recipe.
* Use lazy cutset for all recipes.
* More fixes to use lazy CutSet.
* Remove force=True from logging to support Python < 3.8
* Minor fixes.
* Fix style issues.
* Add force alignment for stateless transducer.
* Add more documentation.
* Compute word starting time from framewise token alignment.
* Update README to include force alignment information.
* Fix typos.
* Fix more typos.
* Fixes after review.