[horde] Migrate horde_prefs data from horde2 to horde3

[Piotr Legiecki]

Hi

Does it make any sense to migrate data from horde_prefs table (horde 
2.2.8) to horde_prefs (horde 3.2.2)? I have looked at values stored in 
this table and some fields have different data format. For example 
pref_name='last_login' in old horde2 look like this: 1282307628, and in 
new like this a:2:{s:4:"time";i:1282824301;s:4:"host";b:0;}.

Not sure about other values, but clearly just dumping and restoring this 
data (horde_prefs) in new horde could cause some trouble?

Regards
P.