[SPARK-2806] core - upgrade to json4s-jackson 3.2.10

Scala 2.11 packages not available for the current version (3.2.6)

Signed-off-by: Anand Avati <avatiredhat.com>

Author: Anand Avati <avati@redhat.com>

Closes #1702 from avati/SPARK-1812-json4s-jackson-3.2.10 and squashes the following commits:

7be8324 [Anand Avati] SPARK-1812: core - upgrade to json4s 3.2.10

Author: avati

core/pom.xml

@@ -150,7 +150,7 @@
     <dependency>
       <groupId>org.json4s</groupId>
       <artifactId>json4s-jackson_${scala.binary.version}</artifactId>
-      <version>3.2.6</version>
+      <version>3.2.10</version>
     </dependency>
     <dependency>
       <groupId>colt</groupId>