* Fix fetching event-based breakdown values with `LIMIT`
* Improve test comment
* Limit prop clauses inclusion to breakdown queries
* Address feedback partly
* Fix imports
* Remove non-3.7-compatible `Literal`
* Don't try to import `Literal`
* Fix oversight
* Always include prop filters in `get_entity_filtering_params`
* Revert "Always include prop filters in `get_entity_filtering_params`"
This reverts commit 4f61edd19a.
* Add and test handling of actions in addition to events
* Update test_funnel.py
* Move new tests to `breakdown_cases`
