[turba] composite fields look editable in Firefox

[Liam Hoekenga]

This seems like it's probably a CSS issue, but I can't figure out what 
element I'd need to change.

We've found that the composite fields for sql based addressbooks (eg 
"names", "homeAddress", etc) look like they're editable to users using 
firefox on (mac, windows, linux).  I've tried several different themes 
("blue and white", "purple horde", "silver surfer", "tango blue"), and 
they all exhibit this issue.

So, I was wondering what CSS we'd change to make the difference more 
obvious.  Or, maybe we should consider only showing the composite fields 
in the "view mode", but the component fields ( "first name", "last name", 
etc) in the "edit mode"

Liam