v4.1.1-ose protected

hirner@bitfire.at

19be3c34 · Version bump to 4.1.1; add F-Droid changelog · Feb 01, 2022

Version 4.1.1

* add warning to avoid apostrophes in account names
* show a warning when disk space is low, which will stop synchronization
* delete dirty events without instances before syncing
* minor optimizations and bug fixes