Remove "Back to the shop" from the my account menu. Switch between "My account" and "Back to the shop" on the main menu.
Cascade Taxonomy delete

A FK reference on the product_taxon table prevents Taxonomies from being deleted.
This commit adds on-delete=CASCADE to the relationships.
Update the ancestorClass in the backend menu
Cascade Delete when removing product options.
Fix safe_label option in menu template.

Original knp_menu label allows unescaped html. Sylius override lost this ability, this commit restores it.
Fix for issue with order processing when given value is not array or Doctrine Collection
Fix Image placeholders

 - avoid usage of placehold.it images together with image filter,
   because image filter does not (currently) work with remote URLs.
 - ensure placeholders have proper size.
 - add missing alt tag content on images.
Fix for doctrine mappings issues in ShippingBundle.
Fixed: checkout security return binded form
Fix translation & make it more consistent

Carts should be singular, and wording is now more consistent throughout site.
move to schema relative url-s