Eamon Kearns added certificate checking for the UA applciation and I am basiing this work on his.
- modifications to applicationContext-acegi-security.xml
	
- filterChainProxy – add ssoAuthenticationProcessingFilter to comma separated list of filters
 - exceptionTranslationFilter - replace authenticationEntryPoint with ssoAuthenticationProcessingFilterEntryPoint
 - authenticationManager – insert ssoAuthenticationProvider into the list of providers
 - Add bean definitions for
		
- ssoAuthenticationProcessingFilter
 - ssoAuthenticationProcessingFilterEntryPoint
 - ssoAuthenticationProvider
 - rolesUserDetailsService
 
 
 - modifications to web.xml
	
- none because the sample already had the Acegi Filter Chain Proxy entry