moved decode/encode methods from saml/logout-mgt to util class
making sure refs to base64 call the util class
fixed cs issues
fixed header
overloaded a deflate method to use the other impl
Merge branch 'master' into base64-calls-refactor

Conflicts:
	cas-server-core/src/main/java/org/jasig/cas/authentication/principal/ShibbolethCompatiblePersistentIdGenerator.java
	cas-server-extension-clearpass/src/main/java/org/jasig/cas/extension/clearpass/EncryptedMapDecorator.java
fixed test failures
Merge branch 'master' into base64-calls-refactor
Merge pull request #799 from Unicon/base64-calls-refactor

Encapsulate Base64 calls in a single component