Log Message:
xfce4-thunar: update to 1.8.7

Change log:

1.8.7
=====
- Fix crash on unmounted volume in tree pane right click (Bug #15452)
- Do not check G_FILE_ATTRIBUTE_ACCESS_CAN_WRITE anymore (Bug #15367)
- Deactivate "Move to Trash" menu entry on volumes without trash (Bug \ 
#15352)
- thunar-sendto-email.desktop: use xdg mail-send icon
- Restore "Empty File" menu icon (Bug #15540)
- Rename Camelcase to Title Case (Bug #15579)
- Update mimeapps.list only when necessary (Bug #15533)
- Prevent new bookmarks on sidebar when dragging files (Bug #14921)
- Translation updates: Albanian, Armenian (Armenia), Belarusian, Catalan,
Chinese (China), Chinese (Taiwan), Croatian, Czech, Danish,
English (Australia), Finnish, French, Galician, German, Hebrew, Hungarian,
Interlingue, Italian, Japanese, Malay, Norwegian Nynorsk, Portuguese, Russian,
Serbian, Spanish, Thai, Turkish