Emborg

- Added ability to check individual archives to the *check* command.
- Made latest archive the default for *check* command.
- Allow *exclude_from* setting to be a list of file names.

- Remove duplicated commands.

- Fixed bug that involved the boolean Borg settings (*one_file_system*, *exclude_caches*, ...)

- Added restore command.
- Added verbose setting.

- Added composite configurations.
- Added support for multiple backup configurations in a single repository.
- Added *prefix*, *exclude_from*, and *verbose* settings.
- Provide default value for *archive* setting.
- Add --all command line option to *mount* command.
- Add --include-external command line option to *check*, *list*, *mount*, and *prune* commands.
- Add --sort command line option to *manifest* command.
- Add --latest command line option to *delete* command.
- Added --quiet option
- *umount* command now deletes directory used as mount point.
- Moved log files to ~/.local/share/emborg (run 'mv ~/.config/emborg/*.{log,lastbackup}* ~/.local/share/emborg' before using this version).

- Added *ssh_command* setting
- Added --fast option to *info* command
- Added *emborg-overdue* executable
- Allow 'run_before_backup' and 'run_after_backup' to be simple strings