fix for #297, enabled throbber

dist/swagger-ui.js

@@ -1562,6 +1562,7 @@ helpers = this.merge(helpers, Handlebars.helpers); data = data || {};
         }
         opts.responseContentType = $("div select[name=responseContentType]", $(this.el)).val();
         opts.requestContentType = $("div select[name=parameterContentType]", $(this.el)).val();
+        $(".response_throbber", $(this.el)).show();
         return this.model["do"](map, opts, this.showCompleteStatus, this.showErrorStatus, this);
       }
     };

src/main/coffeescript/view/OperationView.coffee

@@ -96,6 +96,8 @@ class OperationView extends Backbone.View
       opts.responseContentType = $("div select[name=responseContentType]", $(@el)).val()
       opts.requestContentType = $("div select[name=parameterContentType]", $(@el)).val()
 
+      $(".response_throbber", $(@el)).show()
+
       @model.do(map, opts, @showCompleteStatus, @showErrorStatus, @)
 
   success: (response, parent) ->