Updating Jackson library to 2.3.0 to be in sync with Controller and other Opendaylight projects

Please refer to https://git.opendaylight.org/gerrit/#/c/3905 for the corresponding Controller changes.

Change-Id: If6ab9eb1c057bee30138242098d285549ca6449d
Signed-off-by: Madhu Venugopal <mavenugo@gmail.com>
Merge "Updating Jackson library to 2.3.0 to be in sync with Controller and other Opendaylight projects"