WIP: testclasses complete

TODO(peoplemerge): write implementation code
TODO(peoplemerge): write doctag/doc
TODO(peoplemerge): write commit message

Change-Id: Ic4ed3a803c5066de13ae7c943e88e1edb8121e8e
Merge branch 'v1.1msgpack' of github.com:peoplemerge/marconi into v1.1msgpack