GitLab

* assert both dep and new args exist at same time

* add unintest

* Update tests/test_utils/test_misc.py
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Update tests/test_utils/test_misc.py
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* polish warning

* polish warning
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* [Docs] Add header for files

* change to OpenMMLab

* add headers for .cpp, .cu, .h, .cuh

* replace Open-MMLab with OpenMMLab

* support print using hooks before running.

* Support to print hook trigger stages.

* Print stage-wise hook infos. And make `stages` as class attribute of
`Hook`

* Add util function `is_method_overriden` and use it in
`Hook.get_trigger_stages`.

* Add unit tests.

* Move `is_method_overriden` to `mmcv/utils/misc.py`

* Improve hook info text.

* Add base_class argument type assertion, and fix some typos.

* Remove `get_trigger_stages` to `get_triggered_stages`

* Use f-string.

* add to_ntuple

* add unit test

* move unit tests to specific folders

* fix path error

* remove some assertions

* fix ignore path

* Custom imports

* Resolve comments

* Add unittest

* Add unittest

* Rename custom_imports to import_modules_from_strings

* Move import_modules_from_strings ito misc.py and allow failed imports

* small change

* small change

* change mmcv.runner to os.path

* remove supports for python 2.7

* fix the unit test for python 3.5

* add python 3.8 in CI

* try ubuntu 18.04 as the environment

* add copyright header

* change # to // for cpp files

* add yapf and isort to travis

* minor formatting

* remove blank lines

* skip unit tests for progressbar when python2

* update travis to ubuntu 16.04

* use a newer version ffmpeg

* add -y to add-apt-repository