Log Message:
xfce4-appfinder: update to 4.16.1

Change log:

4.16.1
======
- Launch applications as children again

4.16.0
======
- Launch applications reparenting them to init
- Bump gtk minimum version to 3.22.0
- bump glib (and gio, gthread, etc) minimum to 2.50.0
- Translation Updates:
  Albanian, Amharic, Arabic, Armenian (Armenia), Basque, Bulgarian,
  Catalan, Chinese (China), Chinese (Hong Kong), Chinese (Taiwan),
  Croatian, Danish, Dutch, Eastern Armenian, English (Australia),
  English (Canada), English (United Kingdom), Estonian, Finnish,
  French, Galician, German, Greek, Hebrew, Hungarian, Icelandic,
  Interlingue, Italian, Japanese, Kazakh, Korean, Lithuanian, Malay,
  Norwegian Bokmål, Norwegian Nynorsk, Occitan (post 1500), Polish,
  Portuguese, Portuguese (Brazil), Romanian, Russian, Serbian,
  Slovenian, Spanish, Swedish, Telugu, Turkish, Ukrainian, Uyghur,
  Vietnamese

4.15.2
======
- Add small delay before reloading menu tree (!6)
- Clear entry's error icon and tooltip
- Update copyright year
- GitLab is the new bugtracker
- Remove unnecessary code for unsupported glib versions
- Remove padding from context menu
- Fix memory leaks when sorting items
- Update README.md
- Apply light blue to 16px icon
- Improved and simplified icons for better scaling
- Add back git tag
- Remove extra spaces in configure.ac.in so xfce-do-release works as
  expected
- Translation Updates:
  Belarusian, Czech, Hindi, Indonesian, Slovak, Swedish, Thai

4.15.1
======
- Drop close button
- Add new app icon and switch to rDNS
- Limit popup completion width to be same as entry
- Switch to a few symbolic icons
- Add keywords to .desktop files to xfce4-appfinder
- Translation Updates:
  Albanian, Bulgarian, Chinese (China), Chinese (Hong Kong), Danish,
  Eastern Armenian, English (Canada), Estonian, Finnish, French,
  Galician, German, Hebrew, Hungarian, Italian, Japanese, Kazakh, Korean,
  Lithuanian, Norwegian Bokmål, Portuguese, Portuguese (Brazil),
  Russian, Spanish, Turkish

4.15.0
======
- Record last commands only once (Bug #15767)
- Sort by frecency (Bug #9265)
- Switch to README.md and foreign automake mode
- Move from exo-csource to xdt-csource (Bug #16717)
- Make Preferences button always visible (Bug #16489)
- Fix gtk version checking
- Hidden option to disable entry completion (Bug #15827)
- Use casefolded string when searching for apps not commands (Bug #15893)
- Translation Updates:
  Albanian, Amharic, Arabic, Basque, Belarusian, Chinese (China), Chinese
  (Hong Kong), Chinese (Taiwan), Croatian, Danish, English (Australia),
  English (United Kingdom), Estonian, French, Galician, Greek, Hebrew,
  Hungarian, Icelandic, Indonesian, Interlingue, Italian, Korean,
  Norwegian Nynorsk, Occitan (post 1500), Romanian, Russian, Slovak,
  Slovenian, Spanish, Swedish, Telugu, Uighur, Vietnamese