Merge pull request #168 from dannycoates/logz

Enhanced logging experience
Removed reference to authToken from Account

This was a race condition that could prevent
multiple devices from authenticating simultaneously.
AuthTokens are ephemeral and single-use so don't
need to be managed by the Account.
use '-o short' console output in start-local.sh
Merge pull request #175 from dannycoates/shortconsole

use '-o short' console output in start-local.sh
Merge remote-tracking branch 'mozilla/master' into cc