Upgrade javadoc links to Jackson 2.9

Includes upgrade to Netty 4.1.32.

build.gradle

@@ -47,7 +47,7 @@ ext {
 	junitVintageVersion  = "4.12.3"
 	kotlinVersion        = "1.2.71"
 	log4jVersion         = "2.11.1"
-	nettyVersion         = "4.1.31.Final"
+	nettyVersion         = "4.1.32.Final"
 	reactorVersion       = "Bismuth-SR14"
 	rxjavaVersion        = "1.3.8"
 	rxjavaAdapterVersion = "1.2.1"
@@ -188,9 +188,9 @@ configure(allprojects) { project ->
 		"http://www.eclipse.org/aspectj/doc/released/aspectj5rt-api/",
 		"http://ehcache.org/apidocs/2.10.4",
 		"http://quartz-scheduler.org/api/2.2.1/",
-		"http://fasterxml.github.io/jackson-core/javadoc/2.8/",
-		"http://fasterxml.github.io/jackson-databind/javadoc/2.8/",
-		"http://fasterxml.github.io/jackson-dataformat-xml/javadoc/2.8/",
+		"http://fasterxml.github.io/jackson-core/javadoc/2.9/",
+		"http://fasterxml.github.io/jackson-databind/javadoc/2.9/",
+		"http://fasterxml.github.io/jackson-dataformat-xml/javadoc/2.9/",
 		"http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/"
 	] as String[]
 }