{ "development":
  { "driver":   "mongodb"
  , "url":      "mongodb://localhost/APPNAME-dev"
  }
, "test":
  { "driver":   "mongodb"
  , "url":      "mongodb://localhost/APPNAME-test"
  }
, "production":
  { "driver":   "mongodb"
  , "url":      "mongodb://localhost/APPNAME-production"
  }
}