Merge pull request !6609 from liyong126/fix_mindrecord_log

Merge pull request !6567 from liuzhongkai/code_clean

Merge pull request !6537 from 徐安越/master

Merge pull request !6600 from peixu_ren/custom_bijector

Merge pull request !6181 from lianliguang/fix-bug-of-deal-ref

Merge pull request !6381 from peixu_ren/custom_gpu

Merge pull request !6593 from lijiaqi/lr_api

Merge pull request !6601 from peixu_ren/custom_gpu2

Merge pull request !6608 from panfengfeng/fix_googlenet_gpu_for_imagenet

Merge pull request !6561 from caifubi/dump

Merge pull request !6605 from caifubi/dump2

Merge pull request !6556 from hangq/thread-pool-check

Merge pull request !6565 from zhouyaqiang0/master

Merge pull request !6570 from jiangzhenguang/amend_deeplabv3_readme

Merge pull request !6514 from panfengfeng/fix_api

Merge pull request !6592 from yoonlee666/master

Merge pull request !6588 from yanghaitao/yht_protect_pyfunc_timeout

Merge pull request !6603 from luoyang/pylint

Merge pull request !6602 from wangshaocong/lite_convert

Merge pull request !6559 from qianlong21st/fxi_icu

Merge pull request !6580 from HW_KK/master

Merge pull request !6575 from Gaoxiong/master

Merge pull request !6568 from yelihua/temp-dev

Merge pull request !6576 from heleiwang/mod_tfrecord_api

Merge pull request !6598 from nsyca/revert-3974

Merge pull request !6594 from 张清华/master3

Merge pull request !6584 from ZPaC/master-momentum-supports-use_nesterov

Merge pull request !6516 from EricZ/add_sync_timeout

Merge pull request !6596 from gongdaguo/fix_bug

Merge pull request !6589 from liuxiao93/Add-description-in-API-about-BNTraniningReduce-and-BNTrainingUpdate

Merge pull request !6566 from liuxiao93/fix-BatchToSpaceND