Bug 131771 Match animated message behaviour in Preferences
An enhancement should be made to Preferences so that warnings and errors show up in a sliding message area like it they do in TitleAreaDialog.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/TitleAreaDialog.java
setLayoutsForNormalMessage(verticalSpacing, horizontalSpacing);
        
        
        if (dialogArea != null) {
			workArea.getParent().layout(true);
        	
			 
			 
			
        	titleArea.layout(true);
		}
    }
    /**
     * Set the message text. If the message line currently displays an error,
     * the message is saved and will be redisplayed when the error message is
     * set to <code>null</code>.
     * <p>
     * Shortcut for <code>setMessage(newMessage, IMessageProvider.NONE)</code>
     * </p>
     * This method should be called after the dialog has been opened as it
     * updates the message label immediately.
     * 
     * @param newMessage
     *            the message, or <code>null</code> to clear the message
     */
    public void setMessage(String newMessage) {
        setMessage(newMessage, IMessageProvider.NONE);
    }
    /**
     * Sets the message for this dialog with an indication of what type of