Use json-stringify-safe to handle circular references
If there's no key, don't require nodefly
Don't pass the whole response object, suspected to cause memory leaks.
Exit/restart when status code is 503
Set a 25s timeout for the requests. Heroku sets 30s on their own.
Make it 20s
Just use redis_url as the config option
Merge remote-tracking branch 'upstream/master'
Updated version to v0.1.5