This reverts commit fba30199.

* add_for_bert_models

* update add_for_bert_models

* update for add_for_bert_models

* Use iterable dataloader for image classification

* Support imagenet dataset with plain folder structure

* Add dali section to README.md

* Improve docs

* Remove some flags from docs

* Add dali reader for image classification

* Fix elapsed time calculation

This reverts commit 39d477e2.

* add PointNet++ models

* add profiler and max_iter for paddingrnn

* add profiler for paddingrnn

* update the profiler of seq2seq

* modify profiler args

* add profiler and maxiter for deeplabv3

* fix same params

* add_profiler_maxiter_seq2seq

* add_profiler_maxiter_seq2seq

* add gru and bigru net

* add gru and bigru

* add gru and bigru

* update .run_ce.sh

* chmod +x .run_ce.sh

* add ce

* add ce

* add ce

* add ce

* add ce for xlnet

* add ce for xlnet

* add xlnet ce

* add max_iters and profiler for detection models

* update for detection models

* add profiler and max_iter for yolov3 model

* modify image_classification train

* update train.py

* modify args position

* Create DANet

* reset auc more elegant and fix bug and README in ctr/dnn

* change ctr/dnn README

* fix apis, including os.path, shell and multiprocess

* use mul.cpu_count in win

* PaddleRec release 1.6 api update

* Update README.md

* Update README.md

bold remind of paddle version

* Update README.md

change paddle version note

* add PaddleKG/CoKE

* modify README.md to add CoKE arxiv link and citation