Release v0.4.1

[dghubble]

Draft of release notes:

• Improve agent to wait for pod deletions in parallel (agent: deserialize waitForPodDeletion check. #150)
• Fix update-agent to consider pod UID or name during deletion waits (pkg/agent: Consider NotFound or changed UID pods deleted #151)
  • Handles cases where pods are recreated with the same name
• Fix to return the correct error on D-Bus Call failures (pkg/updateengine: Return the right error on Call failures #148)
• Fix missing RBAC get pods permission to examples (examples: Add RBAC permission to get individual pods #147)

Thanks @diegs