Update Woodstoc to 6.4.0. Closes #317.

pom.xml

@@ -1126,7 +1126,7 @@
     <version.net.sf.kxml.kxml2>2.3.0</version.net.sf.kxml.kxml2>
     <version.org.apache.felix>6.0.3</version.org.apache.felix>
     <version.org.codehaus.jettison>1.4.1</version.org.codehaus.jettison>
-    <version.com.fasterxml.woodstox.core>5.2.0</version.com.fasterxml.woodstox.core>
+    <version.com.fasterxml.woodstox.core>6.4.0</version.com.fasterxml.woodstox.core>
     <version.org.dom4j>2.0.2</version.org.dom4j>
     <version.org.hibernate.core>4.2.5.Final</version.org.hibernate.core>
     <version.org.hibernate.envers>${version.org.hibernate.core}</version.org.hibernate.envers>

xstream-distribution/src/content/download.html

@@ -75,7 +75,7 @@ <h1 id="optional-deps">Optional Dependencies</h1>
         <li><a href="http://www.jdom.org/dist/binary/archive/jdom-1.1.3.zip">JDOM</a>, easy XML representation and manipulation (superseded by JDOM2).</li>
         <li><a href="http://www.jdom.org/dist/binary/jdom-2.0.6.zip">JDOM2</a>, easy XML representation and manipulation, successor of JDOM.</li>
         <li>StaX, the <a href="https://repo1.maven.org/maven2/stax/stax/1.2.0/stax-1.2.0.jar">reference implementation</a> of the <a href="https://repo1.maven.org/maven2/stax/stax-api/1.0.1/stax-api-1.0.1.jar">Streaming API for XML</a>.</li>
-        <li><a href="https://repo1.maven.org/maven2/com/fasterxml/woodstox/woodstox-core/5.2.0/woodstox-core-5.2.0.jar">Woodstox</a>, an alternate open source StaX implementation.</li>
+        <li><a href="https://repo1.maven.org/maven2/com/fasterxml/woodstox/woodstox-core/6.4.0/woodstox-core-6.4.0.jar">Woodstox</a>, an alternate open source StaX implementation.</li>
         <li><a href="http://www.cafeconleche.org/XOM/xom-1.3.2.zip">XOM</a>, another alternative XML API.</li>
       </ul>
       </li>