Release 1.3.0

"Hello, yeah, it's been a while." --England Dan and John Ford Coley in I'd Really Love to See You Tonight, 1976

In this release:

• Automatic download and maintenance of the Duplicacy binary from Gilbert Chen's GitHub releases.
• A new setting to disable the cron jobs.
• A new setting to make all Duplicacy backup and prune operations dry runs.

Release 1.2

Formalization of changes pushed to master as requested in #10.

Release 1.1

Mostly bug fixes and minor changes accumulated over the last few years.

Initial Release

The code has now been running for nearly four months on the author's systems and is working as desired.