Merge pull request #506 from dannycoates/test-refactor

Test refactor
Update loadtests to speak onepw protocol.
Merge pull request #508 from mozilla/rfk/onepw-load-tests

Update loadtests to speak onepw protocol.
refactored crypto/password.js and added verifierVersion config parameter
renamed password.wrapKb to make more sense in the contexts it is used. see comments in #507