FUSE filesystem over Google Drive
Fix #660
Fix #632
Warning: it works only if you try to symlink a file outside the mounted filesystem using an absolute path. With relative paths, it still tries to create a Drive Shortcut, so you will get an error.
Close #619: Add background_folder_fetching config option
Fix #621
#618 Add support for Drive Shortcuts
Close #599
Fix #597
Fix #597
Fix #587: add desktop_entry_as_html config option as an alternative to .desktop files.