GitLab

* Add a flag to specify distribution strategies.

* Fix a small error.

* Address comments.

* Address comments.

* Fix typos.

* Add CIFAR-10 support for keras application models.

* Add distribution strategy to keras benchmark

* Fix comments

* Fix lints

* Add more arguments

* Add eager mode

* Add notes for eager mode

* Address the comments

* Fix argument typos

* Add warning for eager and multi-gpu

* Fix typo

* Fix notes

* Fix pylint

* Add callbacks

* Add readme

* update readme

* fix some comments

* Address all comments

* Update docstrings

* Add method docstrings

* Update callbacks

* Add comments on global_step initialization

* Some updates

* Address comments