Jasig/cas — pull request #304 by serac (2013-08-21 13:46:18+00:00)
Title: CAS-1320 Refactor RADIUS authentication components.

Notable changes:
- RadiusAuthenticator is created on every authentication attempt, which
is required for some RADIUS protocols (e.g. EAP).
- Close RadiusClient to prevent file handle leakage via open socket.