message: Fix application of angular velocity timestamp offset.
diff: @@ -211,7 +211,7 @@ class UnifiedVideoInertialTracker : boost::noncopyable {
  const OSVR_TimeValue offset{0, self.m_angvelUsecOffset};
  osvrTimeValueSum(&tv, &offset);
  }
  - self.handleData(*timestamp, *report);
  + self.handleData(tv, *report);
  }
  ~UnifiedVideoInertialTracker() { stopTrackerThread(); }
  