Merge branch 'development' of github.com:v3io/tutorials

# Conflicts:
#	demos/image-classification/README.md
#	getting-started/dask-cluster.ipynb

Merge branch 'development' of github.com:v3io/tutorials

Merge branch 'development' of github.com:v3io/tutorials

Merge branch 'development' of github.com:v3io/tutorials

Merge pull request v3io#127 from Sharon-iguazio/doc-gpu-demos

[DOC] GPU demos: replace gpu-prerequisites.ipynb with README.ipynb/.md; minor edits to RAPIDS NBs

Merge pull request v3io#124 from Sharon-iguazio/development

[DOC] Fix typo in GPU demos prerequisites [IG-12092]

Merge branch 'development' of github.com:v3io/tutorials

Merge branch 'development' of github.com:v3io/tutorials

Fix load data, remove libraries, add rapids example

fix jdbc issue by adding packages mysql:mysql-connector