Policyd db password not listed in config

==== Required information ====
- iRedMail version: 0.8.5-5
- Store mail accounts in which backend (LDAP):
- Linux/BSD distribution name and version: Centos 6.4
- Related log if you're reporting an issue:
====

Hi Zhang,

I have noticed that the policyd db (mysql) password is not listed in the config file generated after install. 

Therefore AFAIK, I have no way of reproducing the installation using the same password on re-install. 

I've written several restore scripts that copies and overwrites the initial iRedMail config files.  Many of these files have the password listed in them.

Several questions:

1-Is my assumption correct?

2-If so, is there a way to add this to the config file on installation, and pull back from the config file on re-install?

thanks