Bug 164070 Support widows/orphans properties on text item
Support widows/orphans properties on block text item(label, text, data etc), About the definition of widows/orphans, please refer to CSS spec.
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/parser/LabelItemParserTest.java
* collapse" bordercolor="#111111" width="100%" id="AutoNumber6">
 * <tr>
 * <td width="33%"><b>Method </b></td>
 * <td width="33%"><b>Test Case </b></td>
 * <td width="34%"><b>Expected Result </b></td>
 * </tr>
 * <tr>
 * <td width="33%">{@link #testParser()}</td>
 * <td width="33%">Test labelItem properties in PageSetup and Body slots.</td>
 * <td width="34%">the correct value and slot ID returned.</td>
 * </tr>
 * <tr>
 * <td width="33%"></td>
 * <td width="33%">Test the element reference type property</td>
 * <td width="34%">the correct value returned.</td>
 * </tr>
 * <tr>
 * <td width="33%">{@link #testSemanticCheck()}</td>
 * <td width="33%">Test the Text property is required for labelItem</td>
 * <td width="34%">Semantic error</td>
 * </tr>
 * <tr>
 * <td width="33%">{@link #testWriter()}</td>
 * <td width="33%">Set new value to properties and save it.</td>
 * <td width="34%">new value should be save into the output file.</td>
 * </tr>
 * </table>
 * 
 */
public class LabelItemParserTest extends ParserTestCase