Options
| Option | HTML attribute | Type | Description | 
|---|---|---|---|
baseValue | 
                                            data-fv-step-base | 
                                            Float | The base value, default to 0 | 
message | 
                                            data-fv-step-message | 
                                            String | The error message | 
step | 
                                            data-fv-step-step | 
                                            Float | The step, default to 1 | 
 When setting options via HTML attributes, remember to
                                enable the validator by setting data-fv-step="true". 
                             The message and other options can be updated on the
                                fly via the updateMessage() and updateOption() methods