Merge pull request #65 from daviddavo/master

Adding support for help parameter

Author: juchi

Form/Type/ParametersType.php

@@ -39,6 +39,7 @@ public function buildForm(FormBuilderInterface $builder, array $options)
                 'attr' => $definition->getOption('attr', []),
                 'row_attr' => $definition->getOption('row_attr', []),
                 'label_attr' => $definition->getOption('label_attr', []),
+                'help' => $definition->getOption('help'),
                 'translation_domain' => $definition->getTranslationDomain(),
             ];
             $childOptions = array_merge($baseOptions, $field->getFormOptions($definition));