Merge pull request #886 from kubernetes-sigs/master

Merge from master to release-0.5 branch

Kube-batch v0.4.2 Release

Merge pull request #634 from k82cn/automated-cherry-pick-of-#630-#631-#…

…632-#633-upstream-release-0.4

Automated cherry pick of #630: v0.4.1 Release Notes #631: Add helm hook crd-install to fix helm install error #632: Set schedConf to defaultSchedulerConf if failing to #633: Added new PRs.

Merge pull request #573 from k82cn/automated-cherry-pick-of-#569-upst…

…ream-release-0.4

Automated cherry pick of #569: v0.4 Release.

Merge pull request #527 from k82cn/automated-cherry-pick-of-#517-rele…

…ase-0.3

Automated cherry pick of #517: Updated version to 0.3

Merge pull request #501 from k82cn/automated-cherry-pick-of-#500-upst…

…ream-release-0.3

Set 2 compute nodes.

Merge pull request #437 from k82cn/automated-cherry-pick-of-#414-rele…

…ase-0.2

Automated cherry pick of #414: Added --schedule-period

Merge pull request #398 from k82cn/automated-cherry-pick-of-#396-#397-…

…release-0.2

Automated cherry pick of #396: Fixed build images error. #397: Fix build error.