ControllerModelLoading: make backdrop visible

but still not clickable

app/assets/javascripts/app/controllers/_application_controller_generic.coffee

@@ -242,7 +242,7 @@ class App.ControllerModalLoading extends App.Controller
     @el.modal
       keyboard:  false
       show:      true
-      backdrop:  false
+      backdrop:  'static'
       container: @container
 
   render: ->

app/assets/javascripts/app/views/generic/modal_loader.jst.eco

@@ -2,9 +2,6 @@
 
   <form class="modal-content setup wizard">
     <div class="modal-header">
-      <!--<div class="modal-close js-close">
-        <%- @Icon('diagonal-cross') %>
-      </div>-->
       <h1 class="modal-title"><%- @T(@head) %></h1>
     </div>
     <div class="modal-body">