2.0.0.0-dev71

* Fixed bugs:
  * Fixed an issue with displaying product on the frontend when the product flat indexer is enabled
  * Fixed an issue with applying catalog price rules on the category level
  * Fixed an issue where the essential cookies like CUSTOMER, CART, and so on were not created in Google Chrome
  * Fixed an issue with placing orders by customers assigned to a VAT group
  * Fixed an issue with incorrect error message during registration, and inability for a shopper to ask for resending a confirmation email
  * Fixed an issue where the Catalog module resource Setup Upgrade logic was broken
* Modularity improvements:
  * Moved abstract Core models and related logic to the Magento/Model library
  * Moved the abstract DB logic and Core resource helpers to the Magento/DB library
  * Eliminated the Core\Model\App class
  * Moved the Magento Flag functionality to the library
  * Resolved dependency of the Catalog and related modules on the Review module
  * Moved indexers related logic from the ...