[horde] Horde_Db 2.1.0 trashed Installation

[lst_hoe02 at kwsoft.de]

Hello,

after installing the today updates Horde/IMP was not able to start und  
logged the following error over and over again:

[Tue Mar 04 12:01:56 2014] [error] [client 213.164.67.65] PHP Fatal  
error:  Call to a member function quote() on a non-object in  
/usr/share/php/Horde/Db/Adapter/Pdo/Base.php on line 304

I have reverted to Horde_Db 2.0.4 which fixed the error. Any idea what  
went wrong??

Regards

Andreas