Merge branch '2.1-develop' of github.com:magento/magento2ce into MPI-PR-2.1.10

Author: YevSent

app/code/Magento/Catalog/view/frontend/layout/catalog_product_view.xml

@@ -109,7 +109,7 @@
                         <argument name="at_call" xsi:type="string">getDescription</argument>
                         <argument name="at_code" xsi:type="string">description</argument>
                         <argument name="css_class" xsi:type="string">description</argument>
-                        <argument name="at_label" xsi:type="string">none</argument>
+                        <argument name="at_label" translate="true" xsi:type="string">none</argument>
                         <argument name="title" translate="true" xsi:type="string">Details</argument>
                     </arguments>
                 </block>

app/code/Magento/Catalog/view/frontend/templates/product/view/attribute.phtml

@@ -34,7 +34,7 @@ if ($_attributeType && $_attributeType == 'text') {
 
 <?php if ($_attributeValue): ?>
 <div class="product attribute <?php /* @escapeNotVerified */ echo $_className?>">
-    <?php if ($_attributeLabel != 'none'): ?><strong class="type"><?php /* @escapeNotVerified */ echo $_attributeLabel?></strong><?php endif; ?>
+    <?php if ($_attributeLabel != __('none')): ?><strong class="type"><?php /* @escapeNotVerified */ echo $_attributeLabel?></strong><?php endif; ?>
     <div class="value" <?php /* @escapeNotVerified */ echo $_attributeAddAttribute;?>><?php /* @escapeNotVerified */ echo $_attributeValue; ?></div>
 </div>
 <?php endif; ?>

app/design/frontend/Magento/blank/web/css/source/_layout.less

@@ -21,6 +21,7 @@
             .lib-vendor-prefix-flex-basis(100%);
             .lib-vendor-prefix-flex-grow(1);
             .lib-vendor-prefix-order(1);
+            width: 100%; 
         }
 
         .sidebar-main {