Fix rollout history bug where the latest revision was
always shown when requesting a specific revision and
specifying an output.
Add unit and integration tests for rollout history.
Kubernetes-commit: 693e1299a6a75ffe358c41626532cdf2567c267b
cleanup: use i18n.T only on string literals
cleanup: sort imports
Add i18n dependency for wait.go
Remove translation on envResource
cleanup: translate string instead of variable
cleanup: sort imports
cleanup: translate string literal only
Kubernetes-commit: cc8428566ea7160c5b20410a1bee53ca7ddb998e