Bug 148515 [Regression] User properties can't be found in properties view(chart)
[Regression] User properties can't be found in properties view(chart) Steps: 1.Create a chart 2.Open property editor view, select User Porperties, add "abc" string 3.Open properties view Actual Results: 1.user properties are not displayed. Expected Resulst:L 1.user properties should be displayed.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/extension/ExtensibilityProvider.java
/**
	 * Returns the element property definition with the given name from Model or
	 * the extension definition file.
	 * 
	 * @param propName
	 *            name of the property
	 * @return the element property definition with the given name
	 */
	public IPropertyDefn getPropertyDefn( String propName )
	{
		ExtensionElementDefn extDefn = getExtDefn( );
		if ( extDefn != null && extDefn.getProperties( ) != null )
		{
			return extDefn.getProperty( propName );
		}
		return null;
	}
	/**
	 * Returns the element property definition with the given name from Model or
	 * the extension definition file.
	 * 
	 * @param propName
	 *            name of the property
	 * @return the element property definition with the given name
	 */
	public IPropertyDefn getExtensionPropertyDefn( String propName )
	{
		ExtensionElementDefn extDefn = getExtDefn( );
		if ( extDefn != null && extDefn.getLocalProperties( ) != null )
		{