* Update to Kotlin 1.8.10, ACRA 5.9.7, Gradle 7.5.
* Port some classes to Kotlin.
* Simpler user-defined library config with English translations.
* HTTPS certificates for Digicert CA, rz-kiru.de, public libraries of Linz, Hannover, Cottbus, Lübeck, Koblenz, university library RWTH Aachen
* new urls for Unibib Münster, Stadtbücherei Sankt Augustin, Singen, Hochschule Trier, Anhalt.
* update Amazon cover url
* OPEN: update cover url detection
