3.31.90

 * Generate default user account pictures
 * Fix Meson build with (buggy) Meson 0.48.0 and 0.48.1
 * Remove Autotools build
 * Fix various compiler warnings
 * Add welcome distro logo for openSUSE
 * Translation updates:
   - Afrikaans
   - Arabic
   - Aragonese
   - Assamese
   - Basque
   - Belarusian
   - Bengali (India)
   - Bokmål, Norwegian
   - Bosnian
   - Bulgarian
   - Catalan
   - Chinese (China)
   - Chinese (Hong Kong)
   - Czech
   - English (United Kingdom)
   - Esperanto
   - Estonian
   - Gaelic
   - German
   - Gujarati
   - Hebrew
   - Hindi
   - Hungarian
   - Indonesian
   - Interlingua (International Auxiliary Language Association)
   - Irish
   - Japanese
   - Kannada
   - Malayalam
   - Marathi
   - Nepali
   - Occitan (post 1500)
   - Oriya
   - Persian
   - Portuguese
   - Serbian
   - Slovak
   - Tajik
   - Tamil
   - Telugu
   - Thai
   - Uighur
   - Vietnamese