Redirect to url after login

[Wambere]

After #27 it would be nice to be able to fully redirect to a url after logging in to superset

[moshthepitt]

Fixed by #29

[Wambere]

Not exactly. The fix only works for when a user is logged in, we need a fix that will redirect even when the user was not logged in

[moshthepitt]

Ah, okay