Core: Warning fixes

src/server/game/Chat/ChatLink.h

@@ -37,6 +37,7 @@ class ChatLink
 {
 public:
     ChatLink() : _color(0), _startPos(0), _endPos(0) { }
+    virtual ~ChatLink() { }
     void SetColor(uint32 color) { _color = color; }
     // This will allow to extract the whole link string from the message, if necessary.
     void SetBounds(std::istringstream::pos_type startPos, std::istringstream::pos_type endPos) { _startPos = startPos; _endPos = endPos; }