initial push toward the new design.  this is only for the site and does not include the popup.  serveral places are broken and marked with a XXX for fixing.

Conflicts:

	browserid/static/css/style.css

Using a relay iframe to proxy messages through.

Conflicts:
	browserid/lib/wsapi.js

Show error message on invalid authentication.

If an invalid authentication, onSuccess is not called, only onComplete.  Show the error message in onComplete.

close #222.

Updating for all packages for clean node install.

Adding autocapitalize="off" and autocorrect="off" to email fields.

close #102.

create local prod branch if it doesn't exist and land the user on that.  also only try to delete local train- branch if it *does* exist.

change merge_train.sh to refer to prod with a fully qualified path in case it's yet to have been locally checked out