cryptosphere/rbnacl — pull request #38 by tarcieri (2013-02-28 22:55:50+00:00)
Title: Place HMAC classes under the HMAC module

The renames the following:

Crypto::Auth::HmacSha256 -> Crypto::HMAC::SHA256
Crypto::Auth::HmacSha512256 -> Crypto::HMAC::SHA512256

I think these class names are less cumbersome and more appealing
visually.