CAS-1378: Make 1.0 validation use attribute setting in service registry.

CAS-1406: Signout Request messages are badly formatted

CAS-1403: Buffer limit exceeded writing object of type: javax.security.auth.login.FailedLoginException

CAS-1403: Buffer limit exceeded writing object of type: javax.security.auth.login.FailedLoginException

First commit

CAS-1401: Getters/Setters dont match for ldapDateConverter of PasswordPolicyConfiguration

CAS-1283: New p3 endpoints for service and proxy validation

https://issues.jasig.org/browse/CAS-1401

CAS-1381: support for multi-valued attributes to be individually listed

CAS-1396: Fixed incorrect message in the proxy failure response

CAS-1393: Memcached serialization fails when creating a proxy ticket

CAS-1389: Logout fails as an error happens when tickets are marked as expired

CAS-1283: Added support for multi-valued attributes to be individually listed in the payload per the protocol.

CAS-1396: Fixed an issue in the failure response; to correctly indicate the reason for failure in case of unauthorized proxy access

Update according to Marvin's code review

CAS-1371: Turning on session=true at the JSP layer

CAS-1382: D&D functionality of mgmt app

CAS-1334: Adjusted ArgumentExtractor's javadoc to match interface 

First commit

CAS-1384: Authentication error messages are conditionally added to the context

CAS-1386: Fix IV handling for ClearPass in clustered environments

Intended to stay consistent with forced lowercasing of case-sensitive username key in constructHashedKey().

Refer to https://github.com/Jasig/cas/pull/359

Force lowercase of username in case-sensitive hashing

Updates after Misagh's code review

change debug message and add a test to confirm the correct behaviour