GitLab

* Added wandb logger

* bugfix

* fixes

* fix

* flake8 fixes

* yapf fixes

* Refactor hook, add test

* flake8 fixes

* yapf fixes

* fix in test

* mock package => travis

* fix requirements

* don't reuse build dependencies between different envs

* minor fix

* change the order of opencv and opencv-headless

* 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

* flow_warp_c

* flow_warp_c

* beautify format

* beautify format

* beautify format

* beautify format

* add Cython

* modify

* fix details

* fix details

* fix type