added open_only option for Poll renderer
added open_only option for Threads renderer
fixed bug Birthday render limit incorrect value
improved Birthday renderer to cache by timezone
added show_duplicates option for Recent Status renderer
v2.4.9 -- version bump
fixed bug Recent Status renderer with no users found + multiple on
fixed bug snippet ends in the middle of a tag.
v2.4.9b -- version bump
v2.4.9c -- fixed bug resource count for Users renderer
v2.4.9d -- added compatibility for upgrade from older version of the add-on