Bug fixes

Stable release compatible with Drupal 9

Changes since 2.0.0-alpha3:

Includes some bugfixes.

Issues fixed since last release:

#3156198 - Subject not saving by brunoduarte, gueguerreiro

#3163343 - Error when saving configuration by dotpex, gueguerreiro

This is first version that supports Drupal 9.x, next to this, it's a maintenance release.

Changeset:
- Issue #3090263 by nanak, jsobiecki, matthewv789, poorva: WSOD error - Unable to uninstall due to SQL Integrity Constraint Violation
- Issue #3158383 by jesse_k: Overridden links should never inherit query string
- Issue #3144051 by shobhit_juyal: Spelling correction
- Issue #3114114 by Andriy Parkhomiuk: WSOD error during enabling the module
- Issue #3113032 by poorva: Drupal 9 compatibility issue

Changes since 8.x-1.1:

• #3165360 by nagy.balint: Add drupal 9 compatibility in the info yml
• #3121620 by Sahana _N: Remove deprecated code

Drupal 9 compatible release.