Improve the security settings: drupal+mysql+onyx

1) topic related to the ssh key topic
2) drupal should not handle the root's password of onyx nor the mysql admin account
3) should be different from the unix root account or, at least, shoud not have the same password

If agreed by the infra team, i will not be able to make the changes before Monday, but if anyone else can do ... ;)

All changes done :)

@anuragbhandari @jclvanier @johncave I added these two lines in config.inc.php for phpmyadmin
$cfg['ProtectBinary'] = FALSE;
$cfg['ShowBlob'] = TRUE;

because most mysql content of mediawiki is done in binary.

@raphaeljadot Are these settings supposed to expose the blobs in the DB? What are these for exactly?

@anuragbhandari only binary records are perfectly managed by mediawiki, but by default, phpmyadmin don't display nor let edit them. So it's not very useful, when you want to edit interwiki db :)

@raphaeljadot Right. JCL and I too noticed that in some cases the interwiki table has blobs. Good to know there's a config setting to make the blobs readable :)

Raphaël: I cannot find where (on which server) you have done the changes.
I had also searched for editing blobs but, tested on my laptop (PMA 3.5.3):
-- $cfg['ShowBlob'] = TRUE;
works (without this setting, there is still an option in the PMA interface to see the blobs. See also
http://wiki.phpmyadmin.net/pma/Config#ShowBlob).
-- $cfg['ProtectBinary'] = FALSE;
doesn't seem to have any effect.

We can still export, edit and import the field.

I think Raphael made the blob change on Ruby. Right?

@anuragbhandari @jclvanier I made a change few days before and it worked, do you have problem to edit blobs?