OTP-0.1.0.0: CHANGELOG.md

## 0.1.0.0

* Major API rewrite ([#3](https://github.com/hvr/OTP/pull/3))
* Add support for SHA256 and SHA512 besides SHA-1 ([#1](https://github.com/hvr/OTP/pull/1))
* Provide support via cabal flag for using pure Haskell [SHA](http://hackage.haskell.org/package/SHA) implementation

## 0.0.0.1

Initial version of `OTP`