* Change the last bcrypt.get_rounds to bcrypt.getRounds.
* Remove the bcrypt require from tests where it is not needed.
* Remove exports.get_rounds from bcrypt.js, it has been deprecated.

added conformance tests.

tests should now pass
updated to jwcrypto that has proper callback delay guarantees and removed unnecessary setTimeouts

Updated all calls to jwcrypto to use the more intuitive API. Fixed a front-end test that was failing due to true asynchronicity of jwcrypto.

* Update the "stage_user" and "stage_email" to take a password where appropriate.
* Remove pass from calls to "complete_user_creation" and "complete_email_addition"
* Update database drivers to set the account password where appropriate.
* Update unit tests.

fix backend unit tests that were failing due to increased input parameter checking on site arguments to stage_user

(test fix) when checking that certificate duration is correct based on 'ephemeral' argument to cert_key api, allow a 200ms window to account for a small elapsed time between setting of iat and exp - which occurs on a system under load or slower virtualized environments (like travisci)

API changes for public terminals/shared computers, and update all tests
to post data using JSON rather than form encoding, as the front end now does.