Remove custom flag from Quick spell panel

client/gui/CIntObject.h

@@ -73,6 +73,9 @@ public:
 	void disable();
 	/// activates if needed, all activity enabled (Warning: may not be symmetric with disable if recActions was limited!)
 	void enable();
+	/// returns true if element was disabled via disable() call
+	bool isDisabled();
+
 	/// deactivates or activates UI element based on flag
 	void setEnabled(bool on);