Bug 246105 [Dialogs] Title and description not layed out properly when title image is null
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/TitleAreaDialog.java
updateMessage(shownMessage);
			messageImageLabel.setImage(messageImage);
			setImageLabelVisible(messageImage != null);
			layoutForNewMessage();
		}
	}
	/**
	 * Update the contents of the messageLabel.
	 * 
	 * @param newMessage
	 *            the message to use
	 */
	private void updateMessage(String newMessage) {
		messageLabel.setText(newMessage);
	}
	/**
	 * Sets the title to be shown in the title area of this dialog.
	 * 
	 * @param newTitle
	 *            the title show
	 */
	public void setTitle(String newTitle) {
		if (titleLabel == null)
			return;
		String title = newTitle;
		if (title == null)
			title = "";
		titleLabel.setText(title);
	}