The method checks folders in the grace location for their age (parsing
the folder name timestamp) and generates a report for those older than
the given GracePeriod.

This is related to issue #1

Source: own work, based on the [upload-folder-icon-technology][1] vector
graphics file which is distributed under the **Creative Commons CC0**
license (Free for commercial use, no attribution required)

[1]: https://pixabay.com/en/upload-folder-icon-technology-2013228/

Fixes #8

Check on startup if they exist, try to create them otherwise. Remove the
corresponding section from the installer script.

Refers to issue #7.

Corresponds to "autotransfer-v1".