fixes #146 - Only live products are returned
Merge branch '146' of github.com:moveforward/silverstripe-shop into 146

# By Jeremy Shipman (1) and Paul Bennett (1)
* '146' of github.com:moveforward/silverstripe-shop:
  Issue 146 - ensure only live products are returned for add to cart requests
  Added some badges for various services

Conflicts:
	code/ShoppingCart.php