Core:\n- Improved the way UniqueUsers are handled.\n- Major improvements to ClientThread.

Creature:\n- Improvements to Ancient Devil.\n- Preparations for Ancient Devil phase 2.\n- Boss drops will now be locked to their killer for 20 seconds.\n\nEvent:\n- PvP Events will no longer spam Kill Streak messages, it's now only audio.\n\nItem:\n- Tiny fix to Dance8.