Fix markup; button.close should be inside span.form-control
Using reactive templates; WARNING: customized templates <= v0.9.8 need to be updated

Also css is needed to maintain old template look:

```
.s3ff_fileinput_label {
  width: 100%;
  margin-top: 0.5em;
}
```
Use "data-placeholder" to provide complex objects for rendering initial state
e.g. "data-placeholder-url" to show preview image of existing file, "data-placeholder-filename" to display existing filename