Added integration tests

- /session/destroy
- /recovery_email/resend_code
- /get_random_bytes
Merge pull request #123 from dannycoates/i123

Integration tests for all endpoints
Make ClientApi an EventEmitter, to allow tracking of API requests.

This makes it more suitable for use in a loadtesting script.
Merge pull request #149 from mozilla/client-event-emitter

Make ClientApi an EventEmitter, to allow tracking of APi requests.
Add crontab-based auto-update to awsbox deployment.
Merge pull request #150 from mozilla/awsbox-auto-update

Add crontab-based auto-update to awsbox deployment.