Bug 176436 Charts Imported from Libraries do not update when libraries change
During a live presentation of BIRT at EclipseCon, we came across a rather embarassing issue. When charts are included in a library, and imported into a report design from a library, any changes to the library instance of the chart do not reflect in the report itself.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
* 
	 * @see org.eclipse.birt.report.model.elements.ElementVisitor#visitLevel(org.eclipse.birt.report.model.elements.olap.Level)
	 */
	public void visitLevel( Level obj )
	{
		super.visitLevel( obj );
		property( obj, ILevelModel.DATA_TYPE_PROP );
		property( obj, ILevelModel.DATE_TIME_LEVEL_TYPE );
		property( obj, ILevelModel.INTERVAL_BASE_PROP );
		property( obj, ILevelModel.INTERVAL_PROP );
		property( obj, ILevelModel.INTERVAL_RANGE_PROP );
		property( obj, ILevelModel.LEVEL_TYPE_PROP );
		writeStructureList( obj, ILevelModel.STATIC_VALUES_PROP );
		writeStructureList( obj, ILevelModel.ATTRIBUTES_PROP );
		writeContents( obj, ILevelModel.VALUE_ACCESS_CONTROLS_PROP );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.elements.ElementVisitor#visitMeasureGroup(org.eclipse.birt.report.model.elements.olap.MeasureGroup)
	 */
	public void visitMeasureGroup( MeasureGroup obj )
	{
		super.visitMeasureGroup( obj );
		writeContents( obj, IMeasureGroupModel.MEASURES_PROP );
		writeOverridenPropertyValues( obj );
	}
	/*
	 * (non-Javadoc)
	 *