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
* for all property types except a list. Dates and numbers will be converted
	 * using the current locale. Display name will be returned for a choice or a
	 * color property.
	 * 
	 * @param propName
	 *            the name of the property
	 * @return a localized string version of the property.
	 */
	public String getDisplayProperty( String propName )
	{
		return getElement( ).getDisplayProperty( module, propName );
	}
	/**
	 * Returns the value of a property as a Boolean.
	 * 
	 * @param propName
	 *            the name of the property
	 * @return the value as a boolean
	 */
	public boolean getBooleanProperty( String propName )
	{
		return getElement( ).getBooleanProperty( module, propName );
	}
	/**
	 * Returns the value of a property as an integer.
	 * 
	 * @param propName
	 *            the name of the property.
	 * @return the value as an integer. Return 0 if the value cannot be
	 *         converted to an integer.