Hello,

I've been trying to use the ox-mediawiki.el export option to export from org mode to mediawiki mode.

Unfortunately the exporting does a poor job of exporting lists. E.g. the following org mode source:

```
* A section
  - An item
  - Another item
    - A subitem
    - Another subitem
  - Back to first
```

is exported as:
```

= A section =
* An item

* Another item
 
  * A subitem
 
  * Another subitem

* Back to first

```
The expected is:
```
= A section =

* An item
* Another item
** A subitem
** Another subitem
* Back to first
```
I tried to modify ox-mediawiki.el to solve the following two issues:

- Get rid of redundant newlines between exported list items
- Replicate the leading asterisk to reflect the indentation level of the list.

To get of the newline I tried to rewrite the org-export "item" translation function `org-mw-item` but I would either get no newlines at all between my items, or an extra newline between two subsequent items.

I just noted that ox-mediawiki is derived from the html backend, so perhaps the limitations are there.

I would appreciate any guidance of how to fix this.

Thanks!