[imp] Options from server.php

[Rick Romero]

Quoting mtecles at biof.ufrj.br:

> Since Horde 4/Imp 5 some of the configuration and preferences seams
> to be no more available. For example, no more server.php. So, how do
> I set parameters like: the server to connect to, protocol,
> login_tries, and the use of quota?
>
> Copying server.php to imp/config did not help.
>
> Horde 4.0.6 and Imp 5.0.7 installed via pear, Mysql DB

see imp/config/backends.php
backends.php will be overwritten on upgrade as it contains defaults.
copy what you need to backends.local.php and edit that version, it  
will override the defaults in backends.php

Rick