Welcome thread v2.2 changes: Updated PHP code so that 'setIsAutomated' code is correctly placed.
Welcome thread v2.1 changes: The welcome thread recipient is now alerted about the new welcome thread.
Welcome thread v2.0 changes: Added code to prevent banned members from getting a welcome thread.
Welcome thread v1.9 changes: Fixed issue with handling of null value with user_id.
Welcome thread v1.8 changes: Now using finder for performing database queries.
Welcome thread v1.7 changes: Now supports Watched forum notifications.
Welcome thread v1.6 changes: Added 'Mark as read' option to options page.
