v6.0-beta.56

* Comment out rollCron in proxy-prod.yml

* Change swagger UI at gchq.github.io/stroom to work off 6.0 branch

* Issue **#1195** : Fixed issue where combination of quick filter and type filter were not displaying explorer items correctly.

* Issue **#1153** : Changed the way document permissions are retrieved and cached to improve explorer performance.

* Issue **#1196** : Added code to resolve data source names from doc refs if the name is missing when logging.

* Issue **#1165** : Fixed corruption of pipeline structure when adding items to Source.