Adds new info bar to content delete dialog with warning about variants/languages

src/Umbraco.Web.UI.Client/src/views/content/delete.html

@@ -1,12 +1,15 @@
 <div class="umb-dialog umb-pane" ng-controller="Umbraco.Editors.Content.DeleteController">
     <div class="umb-dialog-body" auto-scale="90">
-        
+
         <p class="umb-abstract">
             <localize key="defaultdialogs_confirmdelete">Are you sure you want to delete</localize> <strong>{{currentNode.name}}</strong> ?
         </p>
 
-        <umb-confirm on-confirm="performDelete" on-cancel="cancel">    
-        </umb-confirm>
+        <div class="umb-alert umb-alert--info">
+            <localize key="defaultdialogs_variantdeletewarning">This will delete the node and all its languages. If you only want to delete one language go and unpublish it instead.</localize>
+        </div>
+
+        <umb-confirm on-confirm="performDelete" on-cancel="cancel"></umb-confirm>
 
     </div>
 </div>

src/Umbraco.Web.UI/umbraco/config/lang/en_us.xml

@@ -402,6 +402,7 @@
         <key alias="account">account</key>
         <key alias="selectEditor">Select editor</key>
         <key alias="selectSnippet">Select snippet</key>
+        <key alias="variantdeletewarning">This will delete the node and all its languages. If you only want to delete one language go and unpublish it instead.</key>
     </area>
     <area alias="dictionaryItem">
         <key alias="description">