Update deployment manifests for k8s 1.16+

[sesopenko]

k8s 1.16+ no longer supports extensions/v1beta1 for DaemonSet and Deployment objects. The api versions for these have been updated to apps/v1 to match the documentation in kubernetes: DaemonSet, Deployment

selectors were added to the daemonset because the selector property is no longer optional.

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This change is 

[centos-ci]

Can one of the admins verify this patch?

[sesopenko]

There appear to be build errors for most of the open PRs due to basename, dirname and python not being available in the CI image.

[freeeflyer]

Maybe you can add them in the .travis.yml ?

[sesopenko]

Maybe you can add them in the .travis.yml ?

I'm running into other problems with the other templates, further down the process, too. If I run into time i can contribute some commits to a PR to correct some of these issues but I can't commit the time as of right now.