- Implemented HTML to text conversion.
- Improved logic in mail sending class.
- Attempt to fix issue with identification against remote SMTP server.
- Added more details to logs.
- Added hook_permission which appears to somehow having been forgotten.
- Issue 1860700 by devlada: added support for custom themes.
- Issue 1895734 by pivica: replaced 'arguments' with 'variables' in hook_theme().