[horde] Address AutoComplete for Imp Compose Not Working, Horde Groupware Webmail Edition 5.2.2, Imp 6.2.2, Turba 4.2.2

[A. Schulze]

Andy Dorman:

> found that /imp/core/loader.js is returning a 404 not found error.

I have *no* file "loader.js" at all found in my Horde installation.
(installed from pear.horde.org )

Andreas