Fix to an incorrect check for privileges in the event deletion
Merge branch 'hotfix-2.2.31'
Update to the way xml files are cached
Merge branch 'hotfix-2.2.32'
Removed junk left in the previous commit
Merge branch 'hotfix-2.2.32'
2 Background worker issues fixed

- Start-up script could only be started from the script's location

- Division by zero in e-mail alerts when calculating the progress of the background job
Merge branch 'hotfix-2.2.33'
Small view tweaks
Merge branch 'master' into feature/sharing_groups