[imp] Courier-imap Quota patch

[Roland Obermayer]

Hi,

I finally got quota support w/ courier-imap working - but I needed to
patch imp/lib/Quota/courier.php to avoid an "Unable to retrieve quota"
warning on accounts with unlimited Space.

(horde-3.0.3, imp-h3-4.0.3, courier-imap-4.0.1, postfix-2.1.5 with vda-patch)


Patch for imp/lib/Quota/courier.php
45c45
<         if (is_array($quota) && !empty($quota)) {
---
>         if (is_array($quota)) {