v7.0-beta.36

* Issue **#1621** : Fix NPE in proxy content syncing.

* Issue **#1462** : Stroom not working with MySQL 8.0 due to SQLException

* Issue **#1564** : Fix error in data retention section of stream info popup.

* Change data retention delete batching approach to use time ranges.

* Issue **#1611** : Change explorer tree filtering to also filter on an exact match of the entity's UUID.

* Add regex filtering with `/` prefix to fuzzy matching.

* Change word boundary matching to require a `?` prefix.