[kronolith] Default calendar to view

[Dominique LALOT]

Hello,

That's probably a newbie question. But I removed all my personal prefs 
directly in database. It resolves some of my problems..

Doing that, I had no default calendar view and spent some more time to 
understand what happened when I realised that I just can't display the 
calendar.

What can we do to force a default view for all our users?

Shall we lock that pref:

// store the calendars to diplay
$_prefs['display_cals'] = array(
    'value' => 'a:0:{}',
    'locked' => ,
    'shared' => false,
    'type' => 'implicit',
);

Thanks

Dom