Release Name: Rel 0.5

Notes: I have cleaned up the ActiveCrypto namespaces. It now does not use ActiveRecord::Crypto, but ActiveCrypto::*, if you have called stuff directly please update your code. The reason for this is to really be a good citizen in the world of rails and not unnecessarily pollute the ActiveRecord name space. I have also created much more thorough unit tests and refactored some things that did not work in version 0.4 that the world thankfully did not see.