Admin: Fix bug in adding media for products
Admin: Fix bug in adding media for products

Images and media is added with AJAX.

When adding images do not increase the form count in media
formset to avoid double saves on product images.

Refs EE-119

shoopio/shoop,suutari-ai/shoop,suutari-ai/shoop,shoopio/shoop,shoopio/shoop,suutari-ai/shoop