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git-svn-id: https://svn.forgerock.org/openig/trunk@199 dbb9e58e-28e6-4ce0-90e8-f11d9605b710
OPENIG-115 Increase Unit test coverage for CryptoHeaderFilter

* Changed protected field to private fields
* Introduced getters and setters to make it possible to configure them in the unit tests
* Added missing javadoc

git-svn-id: https://svn.forgerock.org/openig/trunk@200 dbb9e58e-28e6-4ce0-90e8-f11d9605b710