Previous markup used to be
```
<div>
<div>
<li>
```
Instead we will now have:
```
<ul>
<li>
<div>
```
Note this commit also adds two things:
- ability to override tagName of a widget when attaching it
- ability to pass opts and otherOpts to {{attach}}, it could be useful in templates but is mostly useful to test `tagName` for now
This encompasses a lot of work done over the last year, much of which
has already been merged into master. This is the final set of changes
required to get Ember CLI running locally for development.
From here on it will be bug fixes / enhancements.
Co-authored-by: Jarek Radosz <jradosz@gmail.com>
Co-authored-by: romanrizzi <rizziromanalejandro@gmail.com>
Co-authored-by: Jarek Radosz <jradosz@gmail.com>
Co-authored-by: romanrizzi <rizziromanalejandro@gmail.com>
In virtualdom, element 'properties' are not completely synonymous with element 'attributes'. In particular, `data-` properties will not be rendered as attributes. To ensure all attributes are passed through, we need to include them under an `attributes` key. For more info, see https://github.com/Matt-Esch/virtual-dom/blob/master/docs/vnode.md#custom-attributes-data-
