CAS-1179: New Composite TGT Exp Policy and evaluator
CAS-1179: Added test cases
Merge branch 'master' into CAS-1179
CS fixes
used a new abstract class instead of evals
Merge branch 'master' into CAS-1179
Merge pull request #436 from Unicon/CAS-1179

CAS-1179: TGT Expiration Policy Evaluators