Refactor, removing version plugin, split db's

- dbs are split into 6, see db.js
- fixing seeds
- versions will be implemented later
Boards test fixes sans error on delete/find
Boards delete/find fix for test.
Users test + refactor for new db structure.
WIP dependency fixes.
Moved broken test to top level temporarily

- move back test after adding helpers for keys/indexes
- currently without thread tests
- added rm -rf test-epoch.db before running test to ensure clean db.