update release script; fix post submit

[kunmingg]

No description provided.

[coveralls]

Coverage remained the same at 85.217% when pulling 466d441 on kunmingg:releaseupdate into 6aa39a4 on kubeflow:master.

[johnugeorge]

/lgtm

[johnugeorge]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: johnugeorge

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[k8s-ci-robot]

@kunmingg: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
kubeflow-pytorch-operator-presubmit	466d441	link	/test kubeflow-pytorch-operator-presubmit

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[johnugeorge]

closing this as #189 is merged
/close

[k8s-ci-robot]

@johnugeorge: Closed this PR.

In response to this:

closing this as #189 is merged
/close

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