GitLab

* Minor improvements to VideoReader

* update jupyter notebook with new naming
Co-authored-by: Bruno Korbar <bjuncek@gmail.com>

* gitignore now supports IPYNB aux files

* Adding the reference ipython notebook

* Update location

* link fix

* Add autodownload for colab

* rename and address fmassa's comments

* nitpicks

* nitpicks

* Apply suggestions from code review
Co-authored-by: Francisco Massa <fvsmassa@gmail.com>