Bug 145698 Name change won't enable "restore property" button
Steps to reproduce: 1.New a report, extends lib.label 2.Choose the label, switch to property editor, chang its name to "aa" 3.Choose the label again Expected result: "Restore property" button is enabled Actual result: "Restore property" button is grayed out
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
{
		return getFilteredStructureList( CONFIG_VARS_PROP,
				ConfigVariable.NAME_MEMBER ).iterator( );
	}
	/**
	 * Returns the iterator over all structures of color palette. Each one is
	 * the instance of <code>CustomColorHandle</code>
	 * 
	 * @return the iterator over all structures of color palette.
	 * @see CustomColorHandle
	 */
	public Iterator customColorsIterator( )
	{
		return getStructureList( COLOR_PALETTE_PROP ).iterator( );
	}
	/**
	 * Drops a config variable.
	 * 
	 * @param name
	 *            config variable name
	 * @throws SemanticException
	 *             if no config variable is found.
	 * @deprecated
	 */
	public void dropConfigVariable( String name ) throws SemanticException
	{
		PropertyHandle propHandle = this.getPropertyHandle( CONFIG_VARS_PROP );
		int posn = findConfigVariablePos( name );
		if ( posn < 0 )
			throw new PropertyValueException( getElement( ), propHandle