v2.1.0

Loyalty on show field name

• If there is JSON tag on struct the gody will get the field name from json tag value

• Example where struct has a JSON tag

type Response struct {
   FirstName string `validate:"not_empty" json:"fname"`
}

resp := Response{}

if validated, err := validator.Validate(resp); err != nil {
    ...
}

// output error: field fname cannot be empty

• Example where struct hasn't a JSON tag

type Response struct {
   FirstName string `validate:"not_empty"`
}

resp := Response{}

if validated, err := validator.Validate(resp); err != nil {
    ...
}

// output error: field firstName cannot be empty

issue #13