Set option parent .select property earlier in the initialization process

commit dd7f00dc5f introduced edge case bug:
```html
<select>
    {{#options}}
    <option value="{{.}}" selected="{{.===selected}}">{{.}}</option>
    {{/}}
</select>
```
Would cause [this line](https://github.com/ractivejs/ractive/blob/dev/src/render/DomFragment/Attribute/prototype/update.js#L261) to be hit before select parent had been assigned to option.

I know there are other (and arguably better) ways this could be done, but still shouldn't fail.