4.10.0

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- Don't emit property-changed on cancelled calls.
- Accept NULL as a string value (bug #8726).
- Check abicheck.sh to be more portable (bug #8702).
- Fix more deprecated g_value_set_char (bug #8690).
- Explicitly link against gthread (bug #8713).
- Drop deprecated g_mapped_file_free.
- Translation updates: English (United Kingdom), Korean, Dutch
  (Flemish), Portuguese, Romanian, Turkish, Chinese (China).