Initial support for proxy authentication
Merge branch 'master' into MFA-PROXY-VALIDATION
Support for proxy authentication
Fixed proxy config for service validation, to ignore proxy requests.
Merge pull request #48 from Unicon/MFA-PROXY-VALIDATION

Enforces `authn_method` request parameter on `/proxyValidate`.
Removed JavaScript injection vulnerability on additional authentication factor prompt in the JSP, by allowing the value to be escaped.
JavaDocs relationship of MfaCAS to wrapped delegate CAS
* documents assumption that share TicketRegistry
* documents that implements @Inspektr audit trail logging by relying on delegate
adds JavaDoc for setter methods
* adds reminder that CAS and `TicketRegistry` dependencies are linked, and in doing so
* addresses `checkstyle` complaints about missing `@param` tags
Merge pull request #52 from Unicon/javadoc_mfacas_relationship_to_delegate_cas

Javadoc mfacas relationship to delegate cas
Merge branch 'master' into heroku