[cas-dev] RADIUS authentication handler

[Velpi]

> This could be a good candidate for either the core code or the Modules 
> code (I'm thinking Modules right now as I'm not sure how widespread 
> RADIUS usage is).
Since it's used for dial-in and wireless it should be deployed on a very wide scale.

> I'd recommend creating a JIRA issue and attaching the source to it.  We 
> can then move it between CAS Modules and CAS Server as needed.
posting link to JIRA issue as a reference:
http://www.ja-sig.org/issues/browse/CASM-8

--Velpi