* update to 1.6 APIs and fix bugs with tensorboard. (#3663)

* ini commit for deepvoice, add tensorboard to requirements

* fix urls for code we adapted from

* fix makedirs for python2, fix README

* fix open with encoding for python2 compatability

* fix python2's str(), use encode for unicode, and str() for int

* fix python2 encoding issue, add model architecture and project structure for README

* add model structure, add explanation for hyperparameter priority order.

* fix repitiio n in README_cn, and reorder that in README

* README update; fix integer division issues for python2 compatability

* fix data type for input data, specifier the int type as np.int64 to be platform agnostic

* fix README for preprocess.py, use io.open instead of open for python2 compatability.

* update commanline options, use new save/load API

* fix IO conflict bug for data parallel training

* only construct summary writer in process 0 to further avoid conflict

* update details about checkpoint in README (#3673)

* ini commit for deepvoice, add tensorboard to requirements

* fix urls for code we adapted from

* fix makedirs for python2, fix README

* fix open with encoding for python2 compatability

* fix python2's str(), use encode for unicode, and str() for int

* fix python2 encoding issue, add model architecture and project structure for README

* add model structure, add explanation for hyperparameter priority order.

* fix repitiio n in README_cn, and reorder that in README

* README update; fix integer division issues for python2 compatability

* fix data type for input data, specifier the int type as np.int64 to be platform agnostic

* fix README for preprocess.py, use io.open instead of open for python2 compatability.

* update commanline options, use new save/load API

* fix IO conflict bug for data parallel training

* only construct summary writer in process 0 to further avoid conflict

* fix typos and update details for checkpoints

* update installation guide

* add windows support on language model download dataset.

* update new fluid.data and data_loader interface and add check_version

* update for paddle 1.6

* update optimize op in paddle 1.6

* fix ernie based in paddle 1.6

* fix coding for windows

* emotion-detection => 1.6

* ERNIE => 1.6

* [PaddleNLP] update emotion_detection readme

* [PaddleNLP] emotion_detection add download.py for windows user

* modify PaddleRec readme

* fix_dgu_ade_dnet

* fix_readme

* refine download sh to py

* update QUICK_STARTED

* refine yolov3/rcnn/ssd dataset download

* refine docs

* update api in PaddleRec, test=release/1.6

* fix encoding, os.path.join, test=release/1.6

* fix encoding, os.path.join, test=release/1.6

* Update Transformer using Paddle-1.6 apis.

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

* add quick download link of bos in README.

* remove actual_shape

* change version to 1.5 in yolov3

* Use new save/load api and change fluid.layers.data to fluid.data

* add check for paddle version

* Use new save/load api in ptb_lm

* add check for paddle version

* Remove KD scripts

* Add ERNIE2.0 service

* Update server

* Update MTL

* Update README.md

* Update README.md for MTL

* Update README.md

* upgrade_dmtk_name

cherry-pick the readme from develop

Those images are for the new readme of PaddleNLP.

* emotion-detection => 1.6

* ERNIE => 1.6

* [PaddleNLP] update emotion_detection readme

* unify reader to dataloader

* add check_version

* Update README.md

* padding ernie

* modify ernie

* modify code style

* remove squeeze_labels

* fix lod/ernie input_mask dtype

* padding LAC/ERNIE revert squeeze

* padding LAC/ERNIE revert label shape

* padding LAC/ERNIE add padded_token_embeddings

* doc add eval&infer usage

* doc fix

* Upgrade bert to 1.6 api

* Use inplace for reshape