* Update README.md (#4267)

* test=develop (#4269)

* 3d use new api (#4275)

* PointNet++ and PointRCNN use new API

* Update Readme of Dygraph BERT (#4277)

Fix some typos.

* Update run_classifier_multi_gpu.sh (#4279)

remove the CUDA_VISIBLE_DEVICES

* Update README.md (#4280)

* 17 update api (#4294)

* update1.7 save/load & fluid.data

* update datafeed to dataloader

* Update resnet_acnet.py (#4297)

Bias attr of square conv should be "False" rather than None during training mode.

* test=develop

* test=develop

* test=develop

* test=develop

* test
Co-authored-by: NKaipeng Deng <dengkaipeng@baidu.com>
Co-authored-by: Nzhang wenhui <frankwhzhang@126.com>
Co-authored-by: Nparap1uie-s <parap1uie-s@users.noreply.github.com>

* Update PaddleMT/transformer to use new while_loop API.

* Updata PaddleMT/transformer to new save/load API.

* Change d_key to d_value in cached keys.

* Update PaddleMT/transformer inference_model to use new load API.

* Make Transformer support to load py2 saved models.

* Update Transformer using Paddle-1.6 apis. (#3614)

* Update Transformer using Paddle-1.6 apis.

* Add check_version for Paddle-1.6 and reorganize utils including check, configuration, etc.

* mv neural_machine_translation to  PaddleMT (#3732)

* Paddle1.6 transformer fix (#3755)

* Revert "mv neural_machine_translation to  PaddleMT (#3732)"

This reverts commit a46365b6.

* Delete Transformer unremoved palm dir.

* Rename neural_machine_translation as PaddleMT.

* Update to PaddleMT in README.md

Fix transformer inference when using ParallelExecutor by setting ExecutionStrategy to clear tensor array after each iteration. (#3374)

Fix the data file empty check.
Fix the utf8 file encoding.
Refine the README.

* Update transformer to be unified

* To support CE when unifing Transformer