SLING-3262 Update Jackrabbit WebDAV and JCR Server dependencies to 2.6.4 (latest production version)

Also add missing JUnit test dependency to davex project

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1546935 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 126514d..3c3f143 100644
--- a/pom.xml
+++ b/pom.xml
@@ -86,13 +86,13 @@
         <dependency>
             <groupId>org.apache.jackrabbit</groupId>
             <artifactId>jackrabbit-jcr-server</artifactId>
-            <version>2.4.4</version>
+            <version>2.6.4</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.apache.jackrabbit</groupId>
             <artifactId>jackrabbit-webdav</artifactId>
-            <version>2.4.4</version>
+            <version>2.6.4</version>
             <scope>provided</scope>
         </dependency>
 
@@ -151,5 +151,11 @@
             <groupId>org.osgi</groupId>
             <artifactId>org.osgi.compendium</artifactId>
         </dependency>
+
+        <!-- JUnit -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+        </dependency>
     </dependencies>
 </project>