images no longer floated right

I've been using the image caption module on my site for almost a year. For images with the attribute align="right" it was floating the image-caption-container div to the right, which was working perfectly until I upgraded to the latest release. Now the image caption text is aligned to the right and the image is no longer floated. The attached patch reverts this change. It also adds a class to the parent div which contains the alignment so people can overwrite this behaviour in their theme's css file.