51.0
====
- Handle corrupted pdf documents (Peter Eisenmann)
- Handle strings as errors from plugins (Peter Eisenmann)
- Use ".Devel" suffix for the nightly version (Peter Eisenmann)
- Add app icon (Jakub Steiner, Peter Eisenmann)
- Fix papers dependency version (Marco Trevisan (Treviño))

- Translation updates (GNOME Translation Project contributors)