Bug fixes

• Fix issue #2903596: Patch for entity_embed fails to apply on module install by RumyanaRuseva.
• Fix issue #2887244: Coding Standard Issue by eric.chenchao, Ravi Cmsminds.

Fixed regression in access restriction, during performance optimization. See description of bug at https://www.drupal.org/node/2904080#comment-12232061.

- Bug Fix: required fields.
- Feature: Custom title and description for "Other" field in widget settings.
- Codesniffer formatting fixes.

Issues fixed:
https://www.drupal.org/node/2468161
https://www.drupal.org/node/2669132
https://www.drupal.org/node/2820296

Initial alpha release for 3.0.

Changes since 8.x-2.0-alpha2:

• #2903234 by jhedstrom: Send notifications to workflow participants
• #2903949 by jhedstrom: Fix failing tests due to core API changes
• F