[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
Fixed zookeeper dependency of Kafka