Bug fixes

Query bug fixing

Important notice

This update removes the dependency on drupal/features.
If your project relies on drupal/features, add it to your project's composer.json:

composer require drupal/features

If you do not use drupal/features, make sure you uninstall it before updating:

drush pm:uninstall features

This is the fourth alpha release for 8.x-2.x branch.

Changes since 8.x-2.0-alpha3:

• #3159855: Integration with PVZ widget
• Various fixes and improvements

Issue #3166562 by jurgenhaas: Define a default header for requests
Issue #3166564 by jurgenhaas: Interrupting play during reload may not always work
Issue #3166601 by jurgenhaas: Make power actions available as Drush command
Issue #3166908 by jurgenhaas: Properly display embedded video
Issue #3167108 by jurgenhaas: Implement emergency mode into applet
Issue #3167963 by jurgenhaas: Update for digital_signage_framework refactoring
Add action PowerAction for bulk and for canonical device
Follow optimize code for actions in framework

Issue #3166562 by jurgenhaas: Define a default header for requests
Issue #3166566 by jurgenhaas: Standalone SVG should be displayed as HTML, not as image
Issue #3166601: Make power actions available as Drush command
Issue #3167107 by jurgenhaas: Add support for emergency mode
Issue #3167954 by jurgenhaas: Refactor module to bring all default modules into framework
Issue #3168346 by jurgenhaas: Push schedule in UI not working, but as Drush command it's ok
Cast entity ID to integer for emergency entity
Fix CSS for screenshots in preview

Too few arguments DialogRenderer::__construct()
drupalAutoButtons option not respected
License "GPL-2.0+" is a deprecated SPDX license identifier
Code clean up & coding standards