Cleanup, v1.5

Closes #9, closes #17, closes #18, closes #19, closes #20, closes #21.
Cleanup after 3b14d114e6c02ad827a2af5d004ee5ab8c9aec5c.  Relabeled CBs,
relays, and shunts.  Moved items on S05-P01 for greater clarity.
Updated systems and switch plans.  Version bump to 1.5.