CR-3823 OPENIG-106 Fix Checkstyle errors
Increased data encapsulation - handler package.
- Increased data encapsulation on StaticResponseHandler.java and SequenceHandler.java
- Modified unit tests as well.

git-svn-id: https://svn.forgerock.org/openig@288 dbb9e58e-28e6-4ce0-90e8-f11d9605b710