* Fix fast_scnn resize problems

* Fix fast_scnn resize problems 1

* Fix fast_scnn resize problems 2

* test for pascal voc

* init commit: fast_scnn

* 247917iters

* 4x8_80k

* configs placed in configs_unify.  4x8_80k exp.running.

* mmseg/utils/collect_env.py modified to support Windows

* study on lr

* bug in configs_unify/***/cityscapes.py fixed.

* lr0.08_100k

* lr_power changed to 1.2

* log_config by_epoch set to False.

* lr1.2

* doc strings added

* add fast_scnn backbone  test

* 80k 0.08,0.12

* add 450k

* fast_scnn test: fix BN bug.

* Add different config files into configs/

* .gitignore recovered.

* configs_unify del

* .gitignore recovered.

* delete sub-optimal config files of fast-scnn

* Code style improved.

* add docstrings to component modules of fast-scnn

* relevant files modified according to Jerry's instructions

* relevant files modified according to Jerry's instructions

* lint problems fixed.

* fast_scnn config extremely simplified.

* InvertedResidual

* fixed padding problems

* add unit test for inverted_residual

* add unit test for inverted_residual: debug 0

* add unit test for inverted_residual: debug 1

* add unit test for inverted_residual: debug 2

* add unit test for inverted_residual: debug 3

* add unit test for sep_fcn_head: debug 0

* add unit test for sep_fcn_head: debug 1

* add unit test for sep_fcn_head: debug 2

* add unit test for sep_fcn_head: debug 3

* add unit test for sep_fcn_head: debug 4

* add unit test for sep_fcn_head: debug 5

* FastSCNN type(dwchannels) changed to tuple.

* t changed to expand_ratio.

* Spaces fixed.

* Update mmseg/models/backbones/fast_scnn.py

Co-authored-by: Jerry Jiarui XU <xvjiarui0826@gmail.com>

* Update mmseg/models/decode_heads/sep_fcn_head.py

Co-authored-by: Jerry Jiarui XU <xvjiarui0826@gmail.com>

* Update mmseg/models/decode_heads/sep_fcn_head.py

Co-authored-by: Jerry Jiarui XU <xvjiarui0826@gmail.com>

* Docstrings fixed.

* Docstrings fixed.

* Inverted Residual kept coherent with mmcl.

* Inverted Residual kept coherent with mmcl. Debug 0

* _make_layer parameters renamed.

* final commit

* Arg scale_factor deleted.

* Expand_ratio docstrings updated.

* final commit

* Readme for Fast-SCNN added.

* model-zoo.md modified.

* fast_scnn README updated.

* Move InvertedResidual module into mmseg/utils.

* test_inverted_residual module corrected.

* test_inverted_residual.py moved.

* encoder_decoder modified to avoid bugs when running PSPNet.
getting_started.md bug fixed.

* Revert "encoder_decoder modified to avoid bugs when running PSPNet. "

This reverts commit dd0aadfb

Co-authored-by: Jerry Jiarui XU <xvjiarui0826@gmail.com>

* Support ResNeSt backbone

* fixed avg_down

* add docstring and test

* update table

* update docs and tests

* fixed test

* rename

* refactor splits

* update the HRNet-OCR & add ResNet-101-OCR

* revise the script

* add the results of resnet-101+ocr

* add cascade ocr, aspp ocr

* add comparison table

* move comparison table

* support ocr+decoder

* revise the ocrnet_sep_aspp

* update the results of ocrnet

* update the results of ocrnet

* add sep-ocr-variants

* add bs2x exp of deeplabv3/v3+

* apply sep-conv in ocr module

* update the results

* update the results

* update the results of OCRNet

* update the results of OCRNet

* correct the results

* verify the release branch

* init the release branch

* add more results of ocrnet and ocrnetplus

* resolve the conflicts

* rename OCRNetPlus as OCRNet+

* fix the format

* fix the lint issues

* fix the lint issues

* fix the lint issues

* fix the lint isort issues

* fix the lint yapf issues

* fix the format issues

* remove the changes by the master branch

* remove the changes by the master branch

* remove the changes by the master branch

* remove the changes by the master branch

* remove the changes by the master branch

* add the logs folder to .gitignore

* recover .gitignore

* update readme

* update readme

* reset the cudnn_benchmark

* revise the README of OCRNet

* revise the name

* revise the reference of OCRNet

* revise the Figure of OCRNet+

* update the results of OCR/OCR+

* update the results of OCR/OCR+

* update the results of OCR/OCR+

* fix the format issue

* fix the format issue

* remove the ocr+

* update the results

* update the results

* fix the conflicts

* fix the lint issue

* fix the lint issue

* fix the lint issue

* fix the lint issue

* fix the inconsistency

* add urls to README

* clean the code

* remove the schedule configs

* clean the custom code

* clean up

* remove ocr.png

Co-authored-by: Jiarui XU <xvjiarui0826@gmail.com>

* add pytorch2onnx part

* Update according to the latest mmcv

* add docstring

* update docs

* update docs

Co-authored-by: Jiarui XU <xvjiarui0826@gmail.com>

* Auto get version info and git hash

* bump 0.5.1 and update doc

* fixed docs

* Add change log

* Generalized OHEM

* remove config

* update docstring

* fixed sort prob

* fixed valid_mask

* Add load-from flag

* minor update

Co-authored-by: Jiarui XU <xvjiarui0826@gmail.com>

* Support FP16

* add miss folder

* add tests

* remove useless config

* update memory

* reduce config

* migrate fp16 to mmcv

* add model link

* Fixed voc aug convert

* update getting_started.md

* add class balanced doc

* fixed name in pypi, add badge

* fixed name in install.md

* update install.md

* add pypi deployment

* remove useless jobs

* fixed typo and cleanup

* delete build.tx

* add change log

Co-authored-by: Jiarui XU <xvjiarui0826@gmail.com>

* add test tutorial

* remote torch/torchvision from requirements

* update getting started

* rename drop_out_ratio -> dropout_ratio

* add badge

* Created using Colaboratory

* add read docs

* Fixed readthedocs

* fixed colab ref

* add readthedocs.txt

* add link

* fixed modelzoo link

* add missing reference

* fixed docs

* remove relative path in docs

* add colab in README.md

* update docker image

* add newline

* fixed br