Labels are missing for custom textarea fields

[vijnv]

Describe the bug When adding or editing an item, the label for a custom field is missing if the field type is <textarea>

To Reproduce Steps to reproduce the behavior:

1. Go to the new item form
2. Select a category that has custom fields where one of the fields is of the type <textarea>
3. Notice the label you've added for this field is not showing

Expected behavior A <textarea> field with a label displayed next to it

Proposed fix: see pull request #490

[navjottomer]

No issue in develop version