* Bump version to v2.1

* clean minor changes

* More specific change log and clean unnecessary items

* add 2947

* roi_extractors: GRoIE addition

Signed-off-by: Leonardo Rossi <leonardo.rossi@unipr.it>

* Fix bug caused by empty tensor and update benchmark results

Co-authored-by: ZwwWayne <wayne.zw@outlook.com>

* add lvis dataset

* fixed eval

* fixed test cfg

* add resnext config

* update md

* fixed name

* update model urls

* minor fix

* fixed typo

* use open-mmlab lvis

* update travis

* fixed install

* make class balance as default

* add tutorials

* use arxiv page

* add 3x link

* Update model links

* clean scripts

* fix typo

* fix gcc requirement

* move gcc requirement to install.md

* Add upsample_cfg support in FPN

* small fix

* Add multiple extra conv sources

* small logical fix

* Add neck tests for fpn

* Add neck tests for fpn

* fixed several typos

* resolved issues

* Removed extra_convs_source option

* added necks to apis.rst

* change according to comments

* reconfigured configs

* Add RegNet, docs/refactor TBD

* Support RegNet

* Add RegNets

* Modify docs and refactor code

* fix pre-train bug

* Performance ready

* Use public model weights

* Performance & settings done

* Fix unittest bug

* Try another way of test config

* Add unittest and refactor

* Reformat

* Finish refactor regnet

* merge tests

* fix conflicts

* Fix resnext CI bug

* rename parameter

* Add ref link & clean _delete_

* tweaks of doc

* try resnext doctest

* add expansion in block

* remove doctest of resnext

* add RepeatFactorDataset

* add docs and test

* rename to ClassBalancedDataset

* fixed typo

* update inf speed

* update some models

* update benchmark config and model

* add no aug config

* merge log model table with performance table

* add detectron2 url

* Add links in docs

* Fix typo

* Add links of projects

* Add paper links

* Add links in docs

* Fix typo

* Fix unittest bug

* adds note to remove build folder

* updates note to remove build folder

- CAMERA-ID was mention for image_demo.py

* Add a mask rcnn example for config

* Add comments

* Add more comments

* Finish docs

* Fix refer

* Resolve comments

* resolve comments

* Fix indents

* Fix url

* add python path in scripts

* Make python path work

* Shorter path

* Add docs

* Change dist scripts

* Change slurm example

* Fix validate default bug

* Change docs accordingly

settins -> settings

2. Added FSAF model zoo

Co-authored-by: wangxinjiang <wangxinjiang@sensetime.com>

* rename anchor_heads to dense_heads

* update docs

* update docs

* update doc with code block

* add python path in scripts

* Make python path work

* Shorter path

* Add docs

* Change dist scripts

* Change slurm example

* add print_config.py tool

* update docs

* update dockerfile

* typo fix

* add compare table fix model_zoo.md

* fix some typos

* minor add

* minor update

* add link for mmdet

* minor update

* fix the docs

* add docs for image demo

* add macOS in supported systems

* add mmcv into requirements of readthedocs

* add v2.0 changelog

* minor updates

* add speedup percentage

* update changelog

* update the release date

* add api doc

* update mock modules and fix requirements

* fix autodoc modules

* remove tmp file

* add release version in docs/conf.py

* fix docstring styles

* Add score_thr parameter to test

* Add info about score_thr in docs

* Rename score_thr to show_score_thr

* Fix show-score-thr name in getting_started.md

* Enrich dataset tutorial

* Add an example

* Modify the demo

* Change demo format

* change logic

* Reformat code in tutorial

* add docs

* reorg tutorials and a minor fix

* add docs on adding new necks

* add configs for all models

* fix some configs

* Add benchmark models

* update some benchmarks

* Fix retina config

* add more benchmarks

* update MODEL_ZOO.md

* fix cascade mask num_class bug

* change caffe pretrained url

* fix paramwise_cfg bug

* fix paramwise cfg

* restrict minimum h and w in crop_and_resize

* add grad clip for fcos

* add grad clip for ga retinanet

* fix grad clip

* fix img norm

* fix rpn loss bbox

* fix rpn proposal num

* fix url

* clean

* update comparison

* minor update

* add grad clip for guided anchoring

* fix some typos

* add inference time details

* clean

Co-authored-by: ZwwWayne <wayne.zw@outlook.com>

* Add tutorials for V2.0

* Add details for dataset tutorial

* add tutorials in index.rst

* Add tutorials for concat data

* Modify documents

* More contents