* [metric learning] fix windows download dataset

* add windows support on language model download dataset.

* add windows support on language model download dataset.

* fix

* 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

* fix_infer_bug_release_some_model

* 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

* remove actual_shape

* add fpn fix

* fix spade

* update SPADE

* update spade

* update infer

* update infer

* fix_dgu_ade_dnet

* fix_readme

* refine doc for transfer learning

* refine yolov3/rcnn/ssd dataset download

* refine docs

* modify PaddleRec readme

* add face doc
* update face detection readme and add demo jpg

This reverts commit 5108c1c1.

* refine download sh to py

* update QUICK_STARTED

* add quick download link of bos in README.

fix the wrong indents in the menu

update the readme of PaddleNLP, showing the new features of Paddle 1.6, making it easier to be understood, and making it colorful, to be alive.

* 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

* Add C++ inference solution.
* Correct the link.

* Error out if fp16 is enabled and affine channel is used

* Add more documentation on mixed precision training