Merge pull request mlrun#170 from mlrun/0.7.x-dev

fix demos [howto , horovod_training]

Merge pull request mlrun#167 from mlrun/0.7.x-dev

remove nuclio magic from demos

Merge pull request mlrun#158 from mlrun/0.7.x-dev

Add face mask detection demo

Merge pull request mlrun#154 from mlrun/0.7.x-dev

Merge pull request mlrun#153 from mlrun/0.6.x-dev

Merge pull request mlrun#148 from mlrun/0.6.x-dev

fix image-classification demo

Merge pull request mlrun#148 from mlrun/0.6.x-dev

fix image-classification demo

Merge pull request mlrun#148 from mlrun/0.6.x-dev

fix image-classification demo

Merge pull request mlrun#148 from mlrun/0.6.x-dev

fix image-classification demo

Merge pull request mlrun#146 from mlrun/0.6.x-dev

0.6.x-dev merge to 0.6.x

Merge pull request mlrun#139 from mlrun/0.6.x-dev

discover spark service name for howto spark demo