---- Changes since 1.160 ----
First version of this module, which can backup the configuration files of other Webmin modules.
---- Changes since 1.220 ----
Added checkboxes to control if the Webmin config file for the target modules (in /etc/webmin) and the actual server config files (like httpd.conf) are included in each backup.
Added a button on the Edit Backup page to execute it immediately.
Extra files to include in each backup that are not associated with any module can now be manually entered.
---- Changes since 1.290 ----
Made the backup email contents translatable.
---- Changes since 1.320 ----
Added a warning if % is used in filenames but strftime substition is not enabled.
---- Changes since 1.330 ----
Added tabs to reduce the size of the main page.
---- Changes since 1.390 ----
When a directory is entered as an additional path to backup, it will be expanded to the list of all files under it when the backup is done.
When backing up or restoring from an FTP or SSH server, an optional port number can be entered if the remote server is using a non-standard port.
---- Changes since 1.440 ----
Converted commands in the module's API file to POD format, and added more details about each function.
Backup files are now given 600 permissions, to prevent reading by non-root users.
---- Changes since 1.490 ----
Added an option on the restore form to just show the contents of a backup.
---- Changes since 1.510 ----
Added fields to the scheduled backup page for pre and post backup commands.
---- Changes since 1.530 ----
When a scheduled backup is run manually, and pre and post commands are now also run.
