0.14.4

• Fix bugs in transport rate limit enforcement for specific data categories.
  The bug should not have affected anybody because we do not yet emit rate
  limits for specific event types/data categories.
• Fix a bug in capture_event where it would crash if given additional kwargs.
  Thanks to Tatiana Vasilevskaya!
• Fix a bug where contextvars from the request handler were inaccessible in
  AIOHTTP error handlers.
• Fix a bug where the Celery integration would crash if newrelic instrumented Celery as well.