[Ovmsdev] Alert notification history

To try to address Greg’s concern about DMC (debug only) alerts, as well as other requests, we have: https://github.com/openvehicles/Open-Vehicle-Server/issues/1 <https://github.com/openvehicles/Open-Vehicle-Server/issues/1> I have today implemented this on api.openvehicles.com <http://api.openvehicles.com/> and set the data retention to 30 days. From now onwards, if the vehicle raises a push notification, it will be stored in the historical data table under type *-Log-Notification. This history can be retrieved either with the protocol v2 api, or http api. Perhaps @Michael can deploy this to his server as well? Regards, Mark.