Take first pass at harness refactoring.
Convert rt_cs_dev harness to test_harness behaviour.
Fix typo in rt_cs_dev: 'behavious' -> 'behaviour'.
Fix whitespace in rt_cs_dev.
Fix whitespace problems; add some edoc to harness modules.
Fix code reference for edoc in rt_harness.
Merge pull request #672 from basho/feature/jra/decouple-harness

Create test harness behavior; refactor current harnesses