* Security fix: Relevanssi had a vulnerability where anyone could access the search logs and click logs. The log export is now protected.
* Minor fix: Relevanssi had problems with Polylang when a post or term didn't have language specified. Now Relevanssi handles those situations better.
* Minor fix: Post date throttling had a MySQL error that made it replace JOINs instead of concatenating.
* Minor fix: The log database table now has an index on session_id, as not having that index can slow...