Notebooks update

[AndreiKingsley]

Closes #992 .
Migrate netflix geo example to kandy-geo.

[Jolanrensen]

readCSV is deprecated in favor of readCsv in the next release

[Jolanrensen]

remove your api key!

[Jolanrensen]

Please change this line to point to the dev notebooks as well :) and maybe, to make it easier for us and our users in the future, expand the README.md file for the examples module explaining that all notebooks use the latest stable version, while in the dev folder, we target the latest master/dev version :)

Also, please add to the RELEASE_CHECK_LIST.md what to do with the notebooks (aka, move all dev versions to stable, create new dev versions)

[AndreiKingsley]

Please change this line to point to the dev notebooks as well :)

Why and how?

[Jolanrensen]

Why and how?

We actually run the notebooks as part of our test suite (as mentioned in the examples/README.md) to check they still compile. This is done from :core/src/test/jupyter. So, to keep this behavior, we should keep testing the dev notebooks. That way we'll know immediately when we make a change to the library which breaks our notebook examples :)

[AndreiKingsley]

@Jolanrensen done