add unbreakable special items, so we can add special-event gear which users can buy during a certain period of time, but which they can't lose on death. Starting with party-hats
event-items: try a different approach than "unbreakable" (1335750). If they've owned it before (item==false), then they canOwn() again. In those cases, set item to 'event'
winter: add winter-specific class gear as event-timed specials (@lemoness)