Sort admin log file view by date

In the admin site the log file can be downloaded. The list just shows a list, there is no real sorting criteria. It is probably how it is listed by the file system.

The goal is to sort this list by date (not the date in the filename but the actual file date). Most recent files should appear at the top (sort desc)

As a bonus, the file size can be added at the end (Use Formatter.formatBytes() for this):

olat.log.2017-04-11 (1.5MB)