v0.9.0

This release of Polypheny introduces a new architecture based on plugins. This allows to add third-party features and to customize Polypheny. Furthermore, this release adds to new data source adapters: One for Excel sheets and one for Google sheets. Additionally, this release contains a multitude of bug fixes and general stability improvements. Furthermore, it improves performance for certain applications.

In detail, this release comes with the following new features:

• Adding the ability to use sha256 digest for Docker images (#425) (thx to @datomo)
• A new -version command line option (#427) (thx to @rit-clone)
• Introduction of Plugin System & Plugin Refactor (#428) (thx to @datomo)
• A data source adapter for Excel sheets (#418) (thx to @zxie86)
• A data source adapter for Google sheets (#417) (thx to @Slayzur02)
• Improve handling of file-based sources and allow linking of files (#436) (thx to @datomo)
• Fix a naming error in graphs (#438) (thx to @datomo)
• Fix an issue with deploying Docker containers from Polypheny (#438) (thx to @datomo)
• Improve handling of logical operators on graph properties (#438) (thx to @datomo)

Full Changelog: releases/0.8.1...releases/0.9.0