Birthday thread v2.4 changes: Added Custom user field to Options page.
Birthday thread v2.3 changes: Updated PHP code so that 'setIsAutomated' code is correctly placed.
Birthday thread v2.2 changes: Now using entity manager to update ThreadWatch data.
Birthday thread v2.1 changes: Now using finder for performing database queries.
Birthday thread v2.0 changes: Added code to prevent birthday threads being created for banned members.
Birthday thread v1.9 changes: Updated options page. Now uses easier to use Destination forum selector.
