Upgrading Spring

git-svn-id: https://svn.apache.org/repos/asf/cocoon/trunk@1828819 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/parent/pom.xml b/parent/pom.xml
index f8c6b96..f3688c3 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -3179,7 +3179,7 @@
   <properties>
     <targetJdk>1.6</targetJdk>
     <maven.version>2.0.11</maven.version>
-    <spring.version>4.3.15.RELEASE</spring.version>
+    <spring.version>4.3.16.RELEASE</spring.version>
 
     <!-- General doc properties -->
     <docs.deploymentBaseUrl>file://${basedir}/../../../site/site</docs.deploymentBaseUrl>