code review changes

- fix warning messages by implementing pearson.brix.IState
- reset to run ALL unit tests by removing ".only" from journal's 1st describe.
- remove unneeded require of SubmitManager. The MCQ bric requires it because it calls SubmitManager.appendResponseWithDefaultFormatting

Not related to code review other than it needed changes after the reorg:
change the comment about rebuilding to mention make instead of build.sh