db/storage.go
func Conn() (*Storage, error) {
	var (
		strg Storage
		err  error
	)
	url, dbname := DbConfig("")
	strg.Storage, err = storage.Open(url, dbname)
	return &strg, err
}
func Conn() (*Storage, error) {
	var (
		strg Storage
		err  error
	)
	url, dbname := DbConfig("")
	strg.Storage, err = storage.Open(url, dbname)
	return &strg, err
}
// Conn reads the tsuru config and calls storage.Open to get a database connection.
//
// Most tsuru packages should probably use this function. storage.Open is intended for
// use when supporting more than one database.