#743 ReadOnly user's preferences not saved

[Mark Grimshaw]

A readOnly user's preferences never change from the admin-set defaults (i.e. the PHP session is deleted somewhere between saving sessions and header() back to Preferences. In the previous release, this worked.

[Stéphane Aulery]

The code was in reverse order. I've corrected it. Tonight I'll implement the actual fix for time zone management.

[Mark Grimshaw]

Hmmm. Interesting. It works on Firefox but neither on Chrome nor Safari (even an old Opera). I tried closing all browsers and restarting. Same thing: Firefox is fine, the others not.