WOBS-1105 & CS-5408

From now on editors can edit images that are inside editor body. Default template for displaying images in editor body is called `editor_image.tpl` and is located in `newscoop/themes/system_templates/editor_image.tpl`.

To simply overwrite this template you have to create same file in your theme main dir so you can adjust it to your template however you want.

**In this template you can get variables:**
- imgZoomLink - image full size image link, if "Zoom enabled for images in article content?" in system preferences -> Editor Settings is set to yes, you will get image full size link
- imageDetails - details of image, its array of image parameters
    - width - image width
    - height - image height
    - sub - image caption
    - alt - image alt
    - align - image position
- uri - MetaURL class

There is also available image object from `$gimme` e.g: `$gimme->image->photographer`

**Custom `editor_image.tpl` content:**

```smarty
<figure class="image-main">
<a href="{{ $imgZoomLink }}" title="{{ $imageDetails['sub'] }}" photographerName="{{ $gimme->image->photographer }}" class="fancybox-thumb">
<span></span>
<img src="{{ $uri->uri }}" rel="resizable" alt="{{ $imageDetails['alt'] }}" />
</a>
<p>{{ $imageDetails['sub'] }}</p>
</figure>
```