CKEditor Image plugin - Add alignment class always to the outermost tag

[Juergen]

At the moment: In the plugin.js of the image plugin for the CKEditor the alignment class for the image will be added in the following ways.

1) Image without link and without caption: alignment class will be added to the image tag - OK (outermost tag)

2) Image without link and with caption: alignment class will be added to the figure tag - OK(outermost tag)

3) Image with link and without caption: alignment class will be added to the img tag, but this is not the outermost tag - NOT OK

4) Image with link and with caption: alignment class will be added to the figure tag - OK (outermost tag)

Point 3:

The alignment class should always be added to the outermost tag (in this case the anchor tag), because it would make it much easier for markup manipulation via textformatter modules.

At the moment it is a very hard struggle if you want to work with image markup manipulation to get the image alignment to work.

So it would be great to change the plugin.js to add the alignment class always to the outermost tag of the image part.