Call for testers: iRedMail-0.9.0-beta1 with CentOS 7 support.

[Zhang Huangbin]

Dear all,

Here's iRedMail-0.9.0-beta1 with CentOS 7 support, please help test it.

* Download it directly with this link: https://bitbucket.org/zhb/iredmail/downloads/iRedMail-0.9.0-beta1.tar.bz2
* IMPORTANT NOTE: This is still a beta release, it's not recommended for production use. and we don't provide upgrade tutorial for beta releases.

Below are detailed changes since iRedMail-0.8.7:

* Improvements:
- MariaDB support is now available on FreeBSD.
- New index in `amavisd` database for SQL column `policy.policy_name`.
Required by iRedAdmin-Pro self-service.

* Fixed:
- Set 'receive_override_options=no_address_mappings' in Postfix to
disable address mappings before content filter (Amavisd, in our
case), and remove 'no_address_mappings' in Postfix master.cf defined
for transport '127.0.0.1:10025'.
Important note: you should comment out
'receive_override_options=no_address_mappings' in Postfix if you
don't have a content filter.
- Not enable cron job to update SpamAssassin rules in file
/etc/default/spamassassin (CRON=1).
- Incorrect quota dict name in Dovecot quota warning script.
- Decrease number of pre-forked Amavisd processes to 4 to reduce
memory usage.
- Add missing SQL column (mailbox.enableindexer-worker) and LDAP
attribute/value pair: enabledService=indexer-worker. Required by
Dovecot.
Thanks dwbotsch <botsch _at_ cnf.cornell.edu> for the report.

* Updated packages:
+ Roundcube webmail -> 1.0.2

----
Zhang Huangbin, Founder of iRedMail project: http://www.iredmail.org/