upgraded jackson to 2.2.2
upgraded jackson to 2.2.2

LiuShulong/moco,ruiruiguo/moco,LiuShulong/moco,ForrestAlfred/moco,ysjian/moco,cgourlay/moco,rickhan2014/moco,ForrestVV/moco,sandyway/moco,yonglehou/moco,dreamhead/moco,ysjian/moco,ruiruiguo/moco,rickhan2014/moco,cgourlay/moco,jasonchaffee/moco,ForrestAlfred/moco,zhigang1992/moco,zhigang1992/moco,dreamhead/moco,sandyway/moco,yonglehou/moco,jasonchaffee/moco,ForrestVV/moco