Translation changes

app/views/shared/preview/_modal_preview.html.erb

@@ -1,7 +1,7 @@
 <div class="modal hide fade in banner-preview" id="<%= @preview_obj.id %>">
   <div class="modal-header">
     <a class="close" data-dismiss="modal">×</a>
-    <h3><%= t("modal.preview") %></h3>
+    <h3><%= t(:preview) %></h3>
   </div>
   <div class="modal-body">
     <p class="">
@@ -16,7 +16,7 @@
   </div>
   <div class="modal-footer">
     
-    <a href="#" class="btn" data-dismiss="modal"><%= t("modal.close") %></a>
+    <a href="#" class="btn" data-dismiss="modal"><%= t(:close) %></a>
   </div>
   <div>
     <script type="text/javascript" src="/static/kernel.js"></script>