Bug 145724 Change version after auto convert
By the request of 136536, user get warning message to confirm the auto convert. If user select yes, the file convert to newest format, but the version is still old. If user open this file again, he'll get the warning message even the file converted.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/ModelUtil.java
* Determines whether there is a child in the given element, which is kind
	 * of the given element definition.
	 * 
	 * @param element
	 *            the element to find
	 * @param elementName
	 *            the element definition type
	 * @return true if there is a child in the element whose type is the given
	 *         definition, otherwise false
	 */
	public static boolean containElement( DesignElement element,
			String elementName )
	{
		IElementDefn defn = MetaDataDictionary.getInstance( ).getElement(
				elementName );
		return containElement( element, defn );
	}
	/**
	 * Sets default time zone. Wrote this method becuase of bugs in ICUs.
	 */
	public static void setDefaultTimeZone( )
	{
		java.util.TimeZone defaultTimeZone = java.util.TimeZone.getDefault( );
		SimpleTimeZone pdt = new SimpleTimeZone(
				defaultTimeZone.getRawOffset( ), defaultTimeZone.getID( ) );
		SimpleTimeZone.setDefault( pdt );
	}
	/**
	 * Gets the copy of the given element.
	 *