Bug 194825 IconAndMessage dialog has an inconsistent margin
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/IconAndMessageDialog.java
*/
	protected Control createButtonBar(Composite parent) {
		Composite composite = new Composite(parent, SWT.NONE);
		GridLayoutFactory.fillDefaults().numColumns(0) 
														
				.equalWidth(true).applyTo(composite);
		GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).span(
				2, 1).applyTo(composite);
		composite.setFont(parent.getFont());
		
		createButtonsForButtonBar(composite);
		return composite;
	}
	/**
	 * Returns the image to display beside the message in this dialog.
	 * <p>
	 * Subclasses may override.
	 * </p>
	 * 
	 * @return the image to display beside the message
	 * @since 2.0
	 */
	protected abstract Image getImage();
	/*
	 * @see Dialog.createContents(Composite)
	 */
	protected Control createContents(Composite parent) {
		
		initializeDialogUnits(parent);
		Point defaultMargins = LayoutConstants.getMargins();