Action extended classes now can set 'needLogin' as a protected property,
which is defaulted to 'false'. However, FormAction defaults this to 'true'
because most of the form actions will require a current login to be valid.
NewgroupAction, NewmessageAction, NewnoticeAction are all affected by this
commit and in the future we will migrate each potential formaction to the
proper class parent tree. :)
Had to change Action function 'prepare' to 'protected', as you can't
(of course) protect something that's been public in a parent class. The
other way around seems fine for PHP... Eventually all actions will have
protected 'prepare' (use execute/run)
A feature of the previously fixed initialization of Action classes, is
that we now have $this->scoped which is the current profile in use. As
of now that is always a local User, except the corresponding Profile
object.
Also, instead of calling 'showForm' everywhere, in case of an error we
just throw an exception of some sort and pass the message along there.
I've also introduced in FormAction the 'showInstructions' function in
order to get a unified instructions/info/error display method.
TODO: Improve info/error message handling, and what/when/where to show.
