Trackian-facebook-business

Changed
- Graph API call upgrade to [v11.0]https://developers.facebook.com/docs/graph-api/changelog/version11.0

Added
- Support for sending multiple values for certain UserData parameters to Conversions API.

Changed
- Graph API call upgrade to [v10.0](https://developers.facebook.com/docs/graph-api/changelog/version10.0)

Added
- `action_source` field to Event for Conversions API.

Fixed
- Enum compatibility for Python 2.7

Changed
- Graph API call upgrade to [v9.0](https://developers.facebook.com/docs/graph-api/changelog/version9.0)

Added
- `delivery_category` field to Content for Conversions API.

Added
- Added HttpServiceInterface to enable the default request object to be overridden by a user-defined HTTP Request Service object. Available for Conversions API create event requests.
- Added batching to Conversions API. Create batched event requests by using BatchProcessor.