confirmation should redirect to default_confirm_success_url by default

[maysam]

#1084

[dks17]

It needs some tests covering the case (then redirect_url is absent).
Is controller suitable place to put your code? What if I need to get redirect_url in other controller of an application?

[maysam]

this is already following the pattern in registrations_controller.rb#L20-L23

[dks17]

@maysam you are right.
I think that will be better to put your code and the pattern in one place.
And anyway tests are needed.

[MaicolBen]

Merging as the author didn't show up anymore and it isn't mandatory in this case the tests as it's pretty simple.