PLFM-1509 remove createdBy and modifiedBy
Revert PLFM-1509 due to failed integration tests
Refresh from upstream develop
PLFM-1562 UpdateNodeFromBackup does not send eTag message
PLFM-1801 Promot a vesion should copy not move
Merge pull request #394 from eric-wu/develop

PLFM-1562, PLFM-1801