TokenObtainPairView raise BadRequest instead of Unauthorized

[ityshchenko]

Steps to reproduce:

1. Create user
2. Try sign in with a wrong password.

[davesque]

Yeah, I think you're right that 401 is more appropriate in that case. I just made a PR for this and you're free to inspect. I'll merge it in a day or so.

Actually, now that we're raising more non-validation errors inside of serializers, it's making the point that @sergiowalls was trying to make in #24 seem more valid.

[wdifruscio]

Hi, is this fixed yet, or any plans to? I would like to have this!

[davesque]

@wdifruscio Thanks for reminding me about this :). I just rebased that PR and will merge it. I'll probably cut a minor version release soon with that change included.

[davesque]

@wdifruscio Just cut v4.2 with this fix included.

[wdifruscio]

@davesque Thanks so much!!! Amazing