update wsapi_client to return errors in the standard node convention.  update all clients.  fix several areas in loadgen where we were not properly handling errors.  improve informational output of loadgen failures.  closes #838 - helps with issue #784 - closes #785

changed generate to use nodejs crypto, added weakgenerate, added async support for generate, and added tests

reorganize browserid process - break out view serving and wsapi handling.  preparation for dbwriter split.  issue #460

WSAPI CHANGES in preparation for new UX flows, specifically where you provide a password AFTER verifying emails.

  * stage_user no longer takes a password
  * after calling stage_user, you can poll status with user_creation_status
  * instead of 'prove_email_ownership', you call 'complete_user_creation' and provide a password
  * add_email is now 'stage_email'
  * after calling stage_email, you can poll status with email_addition_status
  * instead of 'prove_email_ownership', you call 'complete_email_addition' and provide a password
  * stage_* and complete_* calls are POST
  * *_status calls succeed continuously (not only once)

now that jwcrypto is a node module, we shall change the way that we include it (ie jwcrypto/vep rather than by relative path)

logging setup is moved into app.js for the browserid server (now common between test and prod envs).  remove it from the run.js harness

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

in source urls are now all (interim == eyedee.me) live, the test harness subs in testing urls & hostnames

a little wrapper file to run the implementation provider/secondary thingy standalone outside of the test harness