Update from 15.10 to 16.04 disables Thunar's dropbox integration

[Wolfgang Noichl]

After the upgrade, the dropbox context menus in Thunar are gone. Re-installing thunar-dropbox-plugin fixes that issue.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: thunar-dropbox-plugin 0.2.1+dfsg1-2
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: XFCE
Date: Sun Apr 24 21:21:51 2016
JournalErrors:
 Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system.
       Users in the 'systemd-journal' group can see all messages. Pass -q to
       turn off this notice.
 No journal files were opened due to insufficient permissions.
SourcePackage: thunar-dropbox-plugin
UpgradeStatus: Upgraded to xenial on 2016-04-22 (2 days ago)

[Theo Linkspfeifer (lastonestanding)]

I assume that the package was uninstalled due to some unknown reason.

We can reopen this report if this bug occurs again.