Some horrible changes to try to hack thread-safety into session.py.
Fix one horrible race condition. Hopefully not 50 others...
Remove horrible attempt at session race condition fixing and some old comments in interaction. TODO is fix session race condition.
Fix session race condition by taking updating out of the node (interaction) and putting it into the test loop (Interaction).
Make tests run in increasing test dir, remove some logging, and another fix or so that I can't remember. Tests should be ready to run, should take approx 32 hours.
Add confidence data, loading, saving into log, and loading into test file. All untested.