Add utility 'unquote
Replace 'get-narrative-details with 'get-narrative-timestamp
Add 'get-narrative-timestamp to the test suite

Use this function to confirm whether a valid narrative object was
created, since 'get-narrative-details doesn't entirely make sense here.
Bugfix the test for creating a narrative item
Bugfix the test for deleting a narrative item
Update the sketch of unit tests for narrative items