- new "Redis monitoring" UI on `/setup` page, closed#745
- improved request handling for 3rd party APIs (ESI, SSO, GitHub) see [exodus4d/pathfinder_esi/README.md](https://github.com/exodus4d/pathfinder_esi/blob/b5d4b19/README.md)
- improved `/setup` page, new actions for clear cache/Redis data
- added/improved "/online" status check to deleteLogData() cronjob, closed#495
- added/improved "/online" status check to $characterModel->updateLog(), closed#495
- new added cronjob to delete old statistics data (older 1 year) (weekly)
- updated main menu structure (added new headlines,...)
- updated "feature page", added new section for "statistics"
- updated "system delete" function. systems with no changes (description/alias) will now get deleted instead of set "active = 0", #184
- changed max expire time from file caching (/tmp/cache) from 20d -> 10d
- changed "character log" TTL from 10s to 5s
- changed cronjob interval for "deleteExpiredData" from "weekly" to "downtime"
- changed "delete" icon (e.g. context menu on map) from "eraser" to "trash"
- removed cronjob output logging (cron_deactivateMapData.log)
- fixed non click-able character panels on login page, closed#332