Bug 148525 Display text is not found from library resource file
Steps to reproduce: 1.New a library, add a resource file "a.properties" 2.Add a label with text"abc", add a localization "k1=actuate" 3.New a report, extend the label 4.Preview the report Expected result: Report shows "actuate" in preview Actual result: Report shows "actuate" in layout, but "abc" in preview
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/DesignElementHandle.java
* about the element, such as its type name, list of defined properties,
	 * list of slots and so on.
	 * 
	 * @return the meta-data definition of the element
	 */
	public IElementDefn getDefn( )
	{
		return getElement( ).getDefn( );
	}
	/**
	 * Returns the value of a property as a generic object. The value is the
	 * internal property value, it is not localized. For a property with the
	 * element reference type, the reference element name is returned.
	 * 
	 * @param propName
	 *            the name of the property of interest
	 * @return the value of the property. The type of the returned object
	 *         depends on the property type.
	 * @see #getIntProperty
	 * @see #getStringProperty
	 * @see #getFloatProperty
	 * @see #getNumberProperty
	 */
	public Object getProperty( String propName )
	{
		
		DesignElement element = getElement( );
		Object value = element.getProperty( module, propName );
		if ( value instanceof ReferenceValue )
			return ReferenceValueUtil.needTheNamespacePrefix(