[erp5_core]: Update url script so as to support renderJS UI

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/File_getDownloadUrl.py

 if brain is None:
   brain = context
-return '%s/Base_download' % brain.absolute_url()
+url = '%s/Base_download' % brain.absolute_url()
+
+if url_dict:
+  return {'command': 'raw',
+          'options': {
+            'url': url
+            }
+    }
+return url

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/File_getDownloadUrl.xml

@@ -50,7 +50,7 @@
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string>brain=None, selection=None, selection_name=None, **kw</string> </value>
+            <value> <string>url_dict=False, brain=None, selection=None, selection_name=None, **kw</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>