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/ReferencableStructure.java
if ( libReference.isResolved( ) )
				libReference.getTargetStructure( ).addClientStructure( this );
		}
		return super.getLocalProperty( module, propDefn );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.core.Structure#setIntrinsicProperty(java.lang.String,
	 *      java.lang.Object)
	 */
	protected void setIntrinsicProperty( String propName, Object value )
	{
		if ( LIB_REFERENCE_MEMBER.equalsIgnoreCase( propName ) )
		{
			updateReference( libReference, (StructRefValue) value );
			libReference = (StructRefValue) value;
		}
		else
			assert false;
	}
	/**
	 * Implements to cache a back-pointer from a referenced structure.
	 * 
	 * @param oldRef
	 *            the old reference, if any
	 * @param newRef
	 *            the new reference, if any
	 */
	protected void updateReference( StructRefValue oldRef, StructRefValue newRef )