Duplicati-client

Updated config file path to be canonical on Windows (`%APPDATA%/Local/DuplicatiClient`) and Linux (`~/.config/duplicati-client`).

Added support for connecting to server over HTTPS. Implemented logic and error handling for invalid certificates along with `--insecure` and `--certfile` options to allow using private or self signed certificates.

Added user confirmation step when deleting backup jobs.

Added validation step to check if backup exists before trying to delete it.

Updated the Verbose command to support explicitly declaring `enable` or `disable` instead of only allowing toggling.

Changed from verbose mode to nonverbose mode on default.

Added success message on successful login.

Updated the filter on `list serversettings` to make it more readable.

Fixed a problem with login not exiting after failing to authenticate.

Added Create and Update commands to be used in place of the Import command. The Import command will be deprecated due to it's confusing syntax.

Updated the Delete command to allow deleting notifications as well as backup jobs.

Added a Dismiss command as a shortcut for deleting notifications and as a way to dismiss all notifications at once.

Updated all commands to attempt logging in again if they're called with an expired token.

Improved robustness of the Login command.

Updated the Login command to allow defaulting to last provided URL when no URL is provided.

Added script for packaging a general Python release.

Please be aware of the change to the config file location. You may need to move your existing config if you have custom settings such as a parameters file.

Attached is:
- a generic python version that should run on anything with Python and required dependencies installed
- a Windows self contained binary build of the release, which should run without Python and dependencies.
- a GNU/Linux self contained binary build of the release, which should run without Python and dependencies.
- a macOS self contained binary build of the release, which should run without Python and dependencies.

Improved error handling when attempting to connect to a server that does not respond

Updated the Import method to allow updating an existing backup from a configuration file

Added configuration validation

Added an option to overwrite the config file from within the client

Fixed a bug where dates less than 24 hours in the past would be displayed as "Tomorrow"

Fixed a bug where the client would abort when attempting to print backup info while the backup was running but not transferring data.

Added build scripts for Windows, macOS, and GNU/Linux to ease the creation of self contained binaries for each platform

Attached is:

- a generic python version that should run on anything with Python and required dependencies installed
- a Windows self contained binary build of the release, which should run without Python and dependencies.
- a GNU/Linux self contained binary build of the release, which should run without Python and dependencies.
- a macOS self contained binary build of the release, which should run without Python and dependencies.

Fixed an issue where logging in would not refresh the expiration token.

Changed the expiration token to be an expression of when the token expires instead of when it was renewed

Attached is:

- a generic python version that should run on anything with Python and required dependencies installed
- a Windows self contained binary build of the release, which should run without Python and dependencies.
- A Windows self contained *single* binary build of the release, which should run without Python and dependencies.