AsteriskLabs/devise_google_authenticator — pull request #38 by lubieniebieski (2014-12-02 10:07:16+00:00)
Title: update ROTP version

I was really annoyed by constant warnings `Digest::Digest is deprecated; use Digest`. It was fixed already in the [ROTP gem](https://github.com/mdp/rotp), so I thought - why can't we use that.

soo.. here's my PR - tests are the same as before updating the gem.

I've tried also with `'rotp => '~> 2.0.0'`, but it breaks one of the tests.