Data-Driven Spark 4.0.0-alpha

This release introduces a completely new project structure. DDS now has sub modules (core, datasets and web-ui).

Core

• new servables API
• rework Z scale implementation of heatmap servable
• support for Spark 1.5.x

Datasets

• rework datasets creation to use SQLContext implicit conversions (toDF)
• remove non-necessary Spark context argument from the DataFrame versions of the datasets
• use java.sql.* instead of java.util.* for date and timestamps

Web-UI

• make servable titles and history browser more informative