Description of problem:
After local engine-cleanup hitory db is cleaned, but not used in reinstall.
The conf file containing the db credentials is removed in the cleanup.
When the new user is created, password appears in clear text.

Version-Release number of selected component (if applicable):
3.4.0

How reproducible:
always

Steps to Reproduce:
1. run otopi setup with dwh plugin
2. run cleanup
3. reinstall.

Actual results:
new user is created, password appears in clear text.

Expected results:
if new user is created, password should not appear in clear text.

Additional info:
2014-02-27 13:55:00 DEBUG otopi.ovirt_engine_setup.database database.execute:132 Database: 'template1', Statement: '
                    create role ovirt_engine_history_20140227135500
                    with
                        login
                        encrypted password %(password)s
                ', args: {'password': 'n8rwkK7J'}