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/api/DesignElementHandle.java
* 
	 * @return the property binding list defined for the element
	 */
	public List getPropertyBindings( )
	{
		List nameList = new ArrayList( );
		List resultList = new ArrayList( );
		DesignElement element = getElement( );
		while ( element != null && element.getRoot( ) != null )
		{
			List propBindings = element.getRoot( )
					.getPropertyBindings( element );
			resultList.addAll( filterPropertyBindingName( propBindings,
					nameList ) );
			if ( element.isVirtualElement( ) )
			{
				element = element.getVirtualParent( );
			}
			else
			{
				element = element.getExtendsElement( );
			}
		}
		return resultList;
	}
	/**
	 * Filters propery binding list.If the same name of property binding is
	 * exist, filter it from result set.
	 * 
	 * @param propertyBindings