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
* @param element
	 *            the element to find
	 * @param defn
	 *            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,
			IElementDefn defn )
	{
		if ( element == null || defn == null )
			return false;
		
		int count = element.getDefn( ).getSlotCount( );
		for ( int i = 0; i < count; i++ )
		{
			Iterator iter = element.getSlot( i ).iterator( );
			while ( iter.hasNext( ) )
			{
				DesignElement e = (DesignElement) iter.next( );
				IElementDefn targetDefn = e.getDefn( );
				if ( defn.isKindOf( targetDefn ) )
					return true;
				if ( containElement( e, defn ) )
					return true;
			}
		}
		return false;
	}
	/**