[erp5_web_renderjs_ui] Add gadget_editor in the appcache

bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_appcache.xml

@@ -108,7 +108,7 @@
             <value> <string encoding="cdata"><![CDATA[
 
 CACHE MANIFEST\n
-# generated on Tue, 05 Sep 2017 16:00:01 GMT+0200\n
+# generated on Tue, 05 Sep 2017 16:00:02 GMT+0200\n
 # XXX + fonts\n
 # images/ajax-loader.gif\n
 CACHE:\n
@@ -246,6 +246,8 @@ gadget_jio.js\n
 gadget_translation.html\n
 gadget_translation.js\n
 gadget_translation_data.js\n
+gadget_editor.html\n
+gadget_editor.js\n
 handlebars.js\n
 jiodev.js\n
 renderjs.js\n