Merge pull request #505 from msgpack/jackson-2_9_9

Update jackson-databind to 2.9.9

Author: komamitsu

build.sbt

@@ -115,7 +115,7 @@ lazy val msgpackJackson =
         "org.msgpack.jackson.dataformat"
       ),
       libraryDependencies ++= Seq(
-        "com.fasterxml.jackson.core" % "jackson-databind" % "2.8.11.1",
+        "com.fasterxml.jackson.core" % "jackson-databind" % "2.9.9",
         junitInterface,
         "org.apache.commons" % "commons-math3" % "3.6.1" % "test"
       ),