[horde] Check for newer versions - failed

[Brent]

  Quoting Andreas Mauser <andreas at mauser.info>:

> Hi,
>
> just found, that the button "check for newer versions" returns an  
> error message: Der Server konnte nicht erreicht werden, bitte  
> versuchen Sie es später noch einmal. (Server cannot be reached, pls  
> try again later).
>
> But the VM where Horde6 resides can ping the outside and can apt  
> install anything, so I wonder if you may have seen that behaviour  
> before?
>
> Best regards,
> Andreas
>
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It doesn't appear that this works. This was for the pear-based  
installation. Use the composer method instead to check. I'm not sure  
if this is on the list of things to implement.

brent