Add save! to raise exception if things go wrong

@kirs is right in the syntax. But overall this is a no go for me because we're not targeting Active Record as the Rails integration point, but Active Model.
A record invalid or form invalid error using the Active Form namespace would be fine for me.

--
Kasper

> Den 25/11/2014 kl. 22.17 skrev Kir Shatrov <notifications@github.com>:
> 
> In lib/active_form/base.rb:
> 
> > @@ -42,6 +42,10 @@ def save
> >        end
> >      end
> >  
> > +    def save!
> > +      save or raise ActiveRecord::RecordInvalid.new(self)
> AFAIK || syntax if prefered over or
> 
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