find instances of console.log() and send them to the logger instead, when running under dev harness also route to console.  issue #169

For tests, instrument `email.js` so that one may register an interceptor
function which will be invoked rather than attempting to send email.

closes #88.

rework deployment configuration (using less of the express mechanism) so that configuration options are available at all levels

rework deployment configuration (using less of the express mechanism) so that configuration options are available at all levels

added email config to make testing email easier - be careful on production. Fixed sub-bug in db.js, callback not returned.

figure out and implement the plumbing for users to confirm email addresses.  all that's left is actually sending email.  issue #3