What's Changed
Battery Replaced feature
Added a Battery Last Replaced sensor, Battery Replaced button and service. Press the button or call the service when your battery is changed to have the sensor show how long a battery has lasted.
Adding a battery note manually now only shows devices with batteries (see FAQ if you want to change this).
The library can now have battery_type set to MANUAL to stop auto discovery of those pesky devices with different batteries per revision or are mains or battery powered. You can still add the device manually but this will identify them and stop repeated revisions to the library.
Added Hungarian translation, thanks @bekesizl
Added German translation, thanks @P-v-D
Added Danish translation, thanks @Tntdruid
Thanks to everyone who added devices to the library.