set in case a user uses an incomplete theme.
- new function sqimap_msgs_list_move() to replace sqimap_msgs_list_copy()
- sqimap_msgs_list_copy() no longer deletes messages copied.
+ - Workaround for Mozilla bug #200412 in order to show multipart/related html mail.
+ - Fix for disapearing '0' from decoded strings (bug #784193)
**************************************