Core/Commands: The .setskill command is now usable even if the player doesn't already have the skill learned.
Core/Calendar: Fix memory leak when malformed CMSG_CALENDAR_ADD_EVENT is received
Core/Calendar: Fix memory leak when guild announcement is created
Core/Items: Fixed swapping equipment sets in combat
Merge pull request #11462 from Dehravor/add-event-memleaks

Core/Calendar: Fix memory leaks due to BytebufferException thrown
Core/Calendar: Add documentation regarding fix in previous commit
Core/Scripts: Fix kill credit for quest The Hunter and the Prince(13400).