RentRunner

In this version: - A release that was started but not finished is marked in the list, and the app asks before you leave one. - A release the server processed while its answer never reached the phone is finished as usual. - A release whose vehicle has meanwhile been booked on another contract starts over. - A clearer message when signing in with an account that doesn't use this app. - New in Settings: 'About the app' shows the version and the running update, and lets you check for updates yourself.