add test case for checking that user_id is included updated_known_properties
remove import
update case actions to properly store the user_id of the actor
whitespace
Revert "remove import"

This reverts commit b1cb3371cc8b086747918e90cf9adea26ef2c547.
Merge pull request #56 from dimagi/action-userid

update case actions to properly store the user_id of the actor