- Update README - Add retention metrics - Start retention scanner if configured
- Refactor datastore such that we have a FileDataStore that implements the DataStore interface. - Add in missing SMTP configuration options: max recips, max idle, max message size - Add retention options to config
- binary "inbucketd" is now "inbucket" - renamed "conf" to "etc" so it doesn't get confused with "config" pacakge dir