(mysql driver) add logging, implement emailsBelongToSameAccount, addKeyToEmailRecord, checkAuth, and pubkeysForEmail

(mysql driver) when unit_test is specified at open time, we use a database with a random name, and clean it up upon cdb connection lose.

switched to connect-cookie-session which looks a lot better, will probably require people logging back in, can't do anything about that.

Conflicts:
	package.json

a little test script to allow for running of all tests in repo from top level, also hopes to make tests more discoverable