Features
- Allow notifications to be customized by users #60 (thank you @MMauro94). Check the documentation for that feature for further info on how to use it.
Additonal note for everyone upgrading: #60 replaced sleeping for BACKUP_PRUNING_LEEWAY with a change in how the threshold for purgable backups is calculated. This means that if you used a relatively high value for BACKUP_PRUNING_LEEWAY, your backup procedure will now be noticeably shorter. This is expected behavior and the outcome is the exact same.