Upgrade to jackson 2.9.8

pom.xml

@@ -47,7 +47,7 @@
         <guava.version>20.0</guava.version>
         <velocity.version>1.7</velocity.version>
         <velocity-tools.version>2.0</velocity-tools.version>
-        <jackson.version>2.9.5</jackson.version>
+        <jackson.version>2.9.8</jackson.version>
         <commons-lang.version>2.6</commons-lang.version>
         <commons-collections.version>3.2.2</commons-collections.version>
         <commons-fileupload.version>1.3.3</commons-fileupload.version>