DBus Test Runner

Merge proposals dependent on lp://staging/~ci-train-bot/dbus-test-runner/dbus-test-runner-ubuntu-disco-3574

  1. dbus-test-runner-ubuntu-disco-3574
  2. Dependent merge proposals

lp://staging/~ci-train-bot/dbus-test-runner/dbus-test-runner-ubuntu-disco-3574 has no merge proposals.