SUPTRUSTEDSHOPS-144: Added MC module trusted_shops_buyer_protection-0.5.1.tgz to repo.
SUPTRUSTEDSHOPS-150: Added additional validation on quote items in helper method getTsProductsInCart and removed param definition of event listener addProductToCart as it is unused.
SUPTRUSTEDSHOPS-150:
* Increased module version to 0.5.2
* Added v0.5.2 Release Notes to README.md
* Updated MC module builder