- Each task is now its own class
- Added a database to track backed up events and their destinations
- Added task to check for and backup missed events
Add in the capability to pass extra arguments through to rclone. These
are passed verbatim, and are set to '' by default. They can be passed
either with --rclone-args or by setting the environment variable
RCLONE_ARGS.
For example. the expectation is that the end user can use these for
setting a bandwidth limit so that rclone uploading doesn't saturate
their internet bandwidth.
