Update Umbraco to 7.12.2

WebCms/Umbraco/Views/components/upload/umb-file-dropzone.html

@@ -1,4 +1,4 @@
-<div class="umb-file-dropzone-directive">
+<div data-element="dropzone" class="umb-file-dropzone-directive">
 
 <ng-form name="uploadForm">
 
@@ -23,7 +23,9 @@
 
 
             <!-- Select files -->
-            <div class="file-select"
+            <div 
+                 data-element="button-uploadMedia"
+                 class="file-select"
                  ngf-select
                  ng-model="filesHolder"
                  ngf-change="handleFiles($files, $event)"
@@ -35,6 +37,12 @@
         </div>
     </div>
 
+    <div ng-show="hideDropzone" ngf-drag-over-class="hide" class="text-center">
+        <small>
+            <localize key="media_dragFilesHereToUpload">You can drag files here to upload</localize>
+        </small>
+    </div>
+
     <!-- List of uploading/uploaded files  -->
     <ul class="file-list" ng-show="done.length > 0 || queue.length > 0 || rejected.length > 0 || filesHolder.length > 0">