mini.go
func (config *Config) Boolean(key string, def bool) bool {
	return getBoolean(config.values, key, def)
}
func (config *Config) Boolean(key string, def bool) bool {
	return getBoolean(config.values, key, def)
}
/*
Boolean looks for the specified key and returns it as a bool. If not found the default value def is returned.
*/