[horde] Horde still not working...

[Michael Christopher Robinson]

Good catch on the cahe misspelling.  I fixed that and will see if the
imap connection starts working now.  It has always worked in test.php,
but now that I hear that php-imap is unnecessary I realize I did a lot
of work for nothing :-(

One concern, backends.local.php and conf.php don't seem to agree with
regards to the IMAP server.  One says port 993, the other says 143. 
One says tls, the other says ssl.