Make redirectUri configurable again
Make redirectUri configurable again

This is a regression introduced by commit f0b214f ("Deprecate Redirect
Handler, use public/redirect.html as redirect target", 2017-05-22).

cibernox/torii,cibernox/torii,Vestorly/torii,jdurand/torii,Vestorly/torii,jdurand/torii