MAGETWO-61188: error when installing 2.0 when using deploy:mode:set production

Author: Sergey Shvets

app/code/Magento/Catalog/etc/di.xml

@@ -446,9 +446,9 @@
     <preference for="\Magento\Catalog\Api\CategoryLinkManagementInterface" type="\Magento\Catalog\Model\CategoryLinkManagement" />
     <preference for="Magento\Catalog\Api\Data\ProductWebsiteLinkInterface" type="Magento\Catalog\Model\ProductWebsiteLink" />
     <preference for="Magento\Catalog\Api\ProductWebsiteLinkRepositoryInterface" type="Magento\Catalog\Model\ProductWebsiteLinkRepository" />
-    <preference for="\Magento\Catalog\Api\CategoryLinkRepositoryInterface" type="\Magento\Catalog\Model\CategoryLinkRepository" />
+    <preference for="\Magento\Catalog\Api\CategoryLinkRepositoryInterface" type="Magento\Catalog\Model\CategoryLinkRepository" />
     <preference for="Magento\Catalog\Api\Data\ProductCustomOptionInterface" type="Magento\Catalog\Model\Product\Option" />
-    <preference for="Magento\Catalog\Api\ProductCustomOptionRepositoryInterface" type="\Magento\Catalog\Model\Product\Option\Repository" />
+    <preference for="Magento\Catalog\Api\ProductCustomOptionRepositoryInterface" type="Magento\Catalog\Model\Product\Option\Repository" />
     <preference for="Magento\Catalog\Api\Data\ProductCustomOptionTypeInterface" type="Magento\Catalog\Model\Product\Option\Type" />
     <preference for="Magento\Catalog\Api\ProductTierPriceManagementInterface" type="\Magento\Catalog\Model\Product\TierPriceManagement" />
     <preference for="Magento\Catalog\Api\Data\ProductTierPriceInterface" type="Magento\Catalog\Model\Product\TierPrice" />

app/code/Magento/Downloadable/etc/di.xml

@@ -73,8 +73,8 @@
             </argument>
         </arguments>
     </type>
-    <preference for="\Magento\Downloadable\Api\LinkRepositoryInterface" type="\Magento\Downloadable\Model\LinkRepository" />
-    <preference for="\Magento\Downloadable\Api\SampleRepositoryInterface" type="\Magento\Downloadable\Model\SampleRepository" />
+    <preference for="\Magento\Downloadable\Api\LinkRepositoryInterface" type="Magento\Downloadable\Model\LinkRepository" />
+    <preference for="\Magento\Downloadable\Api\SampleRepositoryInterface" type="Magento\Downloadable\Model\SampleRepository" />
     <preference for="\Magento\Downloadable\Api\Data\LinkInterface" type="\Magento\Downloadable\Model\Link" />
     <preference for="\Magento\Downloadable\Api\Data\SampleInterface" type="\Magento\Downloadable\Model\Sample" />
     <preference for="\Magento\Downloadable\Api\Data\File\ContentInterface" type="\Magento\Downloadable\Model\File\Content" />

app/code/Magento/Quote/etc/di.xml

@@ -22,7 +22,7 @@
     <preference for="Magento\Quote\Api\CouponManagementInterface" type="Magento\Quote\Model\CouponManagement" />
     <preference for="Magento\Quote\Api\CartManagementInterface" type="Magento\Quote\Model\QuoteManagement" />
     <preference for="Magento\Authorization\Model\UserContextInterface" type="Magento\Authorization\Model\CompositeUserContext"/>
-    <preference for="Magento\Quote\Api\CartTotalRepositoryInterface" type="\Magento\Quote\Model\Cart\CartTotalRepository" />
+    <preference for="Magento\Quote\Api\CartTotalRepositoryInterface" type="Magento\Quote\Model\Cart\CartTotalRepository" />
     <preference for="Magento\Quote\Api\CartTotalManagementInterface" type="\Magento\Quote\Model\Cart\CartTotalManagement" />
     <preference for="Magento\Quote\Api\Data\TotalsInterface" type="\Magento\Quote\Model\Cart\Totals" />
     <preference for="Magento\Quote\Api\Data\TotalSegmentInterface" type="\Magento\Quote\Model\Cart\TotalSegment" />

setup/src/Magento/Setup/Module/Di/Code/Scanner/RepositoryScanner.php

@@ -3,6 +3,7 @@
  * Copyright © 2016 Magento. All rights reserved.
  * See COPYING.txt for license details.
  */
+
 namespace Magento\Setup\Module\Di\Code\Scanner;
 
 use Magento\Framework\Autoload\AutoloaderRegistry;
@@ -39,6 +40,8 @@ public function collectEntities(array $files)
                     && $replacementType !== null
                     && (substr($forType->nodeValue, -19) === 'RepositoryInterface')
                 ) {
+                    // backward compatibility workaround for composer below 1.3.0
+                    // (https://github.com/composer/composer/issues/5923)
                     $nodeValue = ltrim($replacementType->nodeValue, '\\');
                     if (!class_exists($nodeValue, false)
                         && !AutoloaderRegistry::getAutoloader()->loadClass($nodeValue)