Cover all of swank code (incoming)
Merge pull request #556 from rorygraves/swank_coverage

Cover all of swank code (incoming)
Remove the last few println from the main src
Merge pull request #563 from rorygraves/remove_last_println

Remove the last few println from the main src
Further work cleaning up protocol layer
Merge pull request #568 from rorygraves/swank_refactor2

Further work cleaning up protocol layer
Make tests quieter
Merge pull request #569 from edani/quiet

Make tests quieter