Bug 130492 Provide a method to serialize the report with library information.
Currently, when engine generate the report document file, the document does not contain any library information. That will cause many propblem on server side. Model should provide a method to serialize the report with library information to a stream so that the generated report document can contain all information that the report need.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/DesignElement.java
break;
			}
			cur = cur.getContainer( );
		}
		
		if ( parent == null )
			return null;
		assert parent.getContainer( ) instanceof Module;
		return parent.getRoot( ).getElementByID( baseId );
	}
	/**
	 * Gets a property value given its internal name. This version does the full
	 * property search as defined by the given derived component. That is, it
	 * gets the "effective" property value. The name can be a built-in property
	 * name or a user-defined property name. However, if the name is not valid,
	 * the method will simply return a null property value.
	 * <p>
	 * The search won't search up the inheritance hierarchy if the property is
	 * defined to not inherit.
	 * <p>
	 * Part of: Property value system.
	 * 
	 * @param module
	 *            the module
	 * @param propName
	 *            name of the property to get. Can be a system-defined or
	 *            user-defined property name. Must be of the correct case.
	 * @return The property value, or null if no value is set.
	 */
	public Object getProperty( Module module, String propName )