Support for li/@value override.

Author: naimdjon

src/test/java/org/docx4j/convert/in/xhtml/NumberingTest.java

@@ -27,7 +27,13 @@
  */
 package org.docx4j.convert.in.xhtml;
 
+import static org.junit.Assert.assertTrue;
+
+import java.math.BigInteger;
+import java.util.List;
+
 import org.docx4j.XmlUtils;
+import org.docx4j.model.listnumbering.ListNumberingDefinition;
 import org.docx4j.openpackaging.exceptions.Docx4JException;
 import org.docx4j.openpackaging.exceptions.InvalidFormatException;
 import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
@@ -52,11 +58,8 @@
 import org.junit.Ignore;
 import org.junit.Test;
 
-import java.math.BigInteger;
-import java.util.List;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
 
 public class NumberingTest {