Kijimr 80 package reorg

Broken up into several commits. Check the commit log for an overview of the list of changes.

Check commits that make serious changes. Proof read package-info's. Be sure to evaluate the findBugs excludeFilter changes.

Major change is Transform becomes 'mapreduce'.

Squish before pushing.

Testing done: mvn clean verify

Changes for mapreduce-lib and tutorial incoming.