CronJob: add support for server_version == 1.4 (ScheduledJob) and server_version >= 1.5 (CronJob)
CronJob: add support for server_version == 1.4 (ScheduledJob) and server_version >= 1.5 (CronJob)

froch/kubernetes-py,froch/kubernetes-py,mnubo/kubernetes-py,sebastienc/kubernetes-py,sebastienc/kubernetes-py,mnubo/kubernetes-py