XWIKI-20641: Upgrade to CSS4J & CSS4J-DOM4J 3.9.1 & XML-DTD 4.1.1

pom.xml

@@ -714,7 +714,7 @@
       <dependency>
         <groupId>io.sf.carte</groupId>
         <artifactId>css4j</artifactId>
-        <version>3.9.0</version>
+        <version>3.9.1</version>
       </dependency>
       <dependency>
         <groupId>io.sf.carte</groupId>
@@ -726,7 +726,7 @@
         <groupId>io.sf.carte</groupId>
         <artifactId>css4j-dom4j</artifactId>
         <!-- Note: has a different release cycle than CSS4J "core" -->
-        <version>3.9.0</version>
+        <version>3.9.1</version>
       </dependency>
 
       <!-- Carte XML DTD -->
@@ -734,7 +734,7 @@
         <groupId>io.sf.carte</groupId>
         <artifactId>xml-dtd</artifactId>
         <!-- Note: has a different release cycle than CSS4J -->
-        <version>4.1.0</version>
+        <version>4.1.1</version>
       </dependency>
 
       <!-- Restlet -->