Roundcube + Active Directory integration

==== Required information ====
- iRedMail version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Linux/BSD distribution name and version:
- Related log if you're reporting an issue:
======== Required information ====
- iRedMail version: 0.8.7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): Active Directory LDAP
- Linux/BSD distribution name and version: CentOS 6.5
- Related log if you're reporting an issue:
====

Hello,

The Active Directory integration tutorial, posted here:

http://www.iredmail.org/wiki/index.php? … y.iRedMail

describes how to "Enable Global LDAP Address Book wih AD in Roundcube webmail".  Specifically, it says:

However, at least on a CentOS install of iRedMail 0.8.7, the file /var/www/roundcubemail/config/main.inc.php does not exist.  The closest I could find was /var/www/roundcubemail/config/config.inc.php, but that file doesn't seem to have the right contents inside.

Is there an appropriate file to edit to get this feature with an Active Directory backend?

Thanks much!