Added missing overrides. (#113)

Author: rolivav

src/DockManager.h

@@ -296,7 +296,7 @@ class ADS_EXPORT CDockManager : public CDockContainerWidget
 	 * This function always return 0 because the main window is always behind
 	 * any floating widget
 	 */
-	virtual unsigned int zOrderIndex() const;
+	unsigned int zOrderIndex() const override;
 
 	/**
 	 * Saves the current state of the dockmanger and all its dock widgets

src/FloatingDockContainer.h

@@ -157,7 +157,7 @@ private slots:
 	 * Moves the widget to a new position relative to the position given when
 	 * startFloating() was called
 	 */
-	void moveFloating();
+	void moveFloating() override;
 
 	/**
 	 * Restores the state from given stream.