### Please describe the problem.

I assume this is an assistant problem.

My git-annex version on Mac OS seems to lag significantly behind current releases. I was today informed that it was updated to 5.20131221-g00d1673. Given that there are at least two newer versions I expected it to be updated to the newest one.

There also seems no way to trigger a check for a new version.

### What steps will reproduce the problem?

Install on Mac. Observe over some days and see it not update.


### What version of git-annex are you using? On what operating system?

5.20131221-g00d1673,
Mac OS

### Please provide any additional information below.

[[!format sh """
# If you can, paste a complete transcript of the problem occurring here.
# If the problem is with the git-annex assistant, paste in .git/annex/daemon.log
[2014-01-10 14:46:44 CET] main: starting assistant version 5.20131221-g00d1673
[2014-01-10 14:46:44 CET] UpgradeWatcher: Finished upgrading git-annex to version 5.20131221-g00d1673 
(scanning...) [2014-01-10 14:46:44 CET] Watcher: Performing startup scan
(started...) [2014-01-10 14:47:02 CET] main: starting assistant version 5.20131221-g00d1673
(scanning...) [2014-01-10 14:47:02 CET] Watcher: Performing startup scan
(started...) 
[2014-01-10 14:48:44 CET] main: starting assistant version 5.20131221-g00d1673
(scanning...) [2014-01-10 14:48:44 CET] Watcher: Performing startup scan
(started...) 
[2014-01-10 14:49:35 CET] main: starting assistant version 5.20131221-g00d1673
(scanning...) [2014-01-10 14:49:35 CET] Watcher: Performing startup scan
(started...) [2014-01-10 14:52:44 CET] UpgradeWatcher: Upgrading git-annex

[2014-01-10 14:52:44 CET] main: starting assistant version 5.20131221-g00d1673
[2014-01-10 14:52:44 CET] UpgradeWatcher: Finished upgrading git-annex to version 5.20131221-g00d1673 
(scanning...) [2014-01-10 14:52:45 CET] Watcher: Performing startup scan
(started...) [2014-01-10 14:53:13 CET] main: starting assistant version 5.20131221-g00d1673
(scanning...) [2014-01-10 14:53:13 CET] Watcher: Performing startup scan
(started...) 
[2014-01-15 15:22:29 CET] main: starting assistant version 5.20131221-g00d1673
[2014-01-15 15:22:30 CET] Cronner: Consistency check in progress
(scanning...) [2014-01-15 15:22:30 CET] Watcher: Performing startup scan
(started...) 
(scanning...) [2014-01-15 15:23:05 CET] Watcher: Performing startup scan
[2014-01-15 15:23:05 CET] Committer: Committing changes to git
(Recording state in git...)
(started...) [2014-01-15 15:23:06 CET] main: Syncing with box.com 

[2014-01-15 15:23:28 CET] main: starting assistant version 5.20131221-g00d1673
(scanning...) [2014-01-15 15:23:28 CET] Watcher: Performing startup scan
(started...) [2014-01-15 16:23:30 CET] NetWatcherFallback: Syncing with box.com 
[2014-01-15 17:23:31 CET] NetWatcherFallback: Syncing with box.com 
[2014-01-15 18:23:32 CET] NetWatcherFallback: Syncing with box.com 
[2014-01-16 16:42:15 CET] NetWatcherFallback: Syncing with box.com 
[2014-01-16 16:56:33 CET] UpgradeWatcher: Upgrading git-annex

[2014-01-16 16:56:33 CET] main: starting assistant version 5.20131221-g00d1673
[2014-01-16 16:56:33 CET] Cronner: Consistency check in progress
[2014-01-16 16:56:33 CET] UpgradeWatcher: Finished upgrading git-annex to version 5.20131221-g00d1673 
(scanning...) [2014-01-16 16:56:33 CET] Watcher: Performing startup scan
(started...) fsck dvi2bitmap ok
[2014-01-16 16:58:14 CET] main: starting assistant version 5.20131221-g00d1673
(scanning...) [2014-01-16 16:58:14 CET] Watcher: Performing startup scan
(started...) 

# End of transcript or log.
"""]]