erp5_xhtml_style: Add Ctrl + S binding in CKEditor

erp5_xhtml_style: Update ckeditor appcache

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_ckeditor/ckeditor.gadget.appcache.appcache

 CACHE MANIFEST
-# generated on Mon, 16 Oct 2017 10:00:01 +0000
+# generated on Mon, 22 Oct 2017 10:00:01 +0000
 CACHE:
 renderjs.js
 rsvp.js

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_ckeditor/ckeditor.gadget.js.js

@@ -101,13 +101,19 @@
       toolbar: TOOLBAR_MOBILE,
       disableNativeSpellChecker: false,
       // Disable ACF to not destroy HTML on mobile
-      allowedContent: true
+      allowedContent: true,
+      keystrokes: [
+        [CKEDITOR.CTRL + 83, 'saveRJS']
+      ],
     },
     DESKTOP_CONFIGURATION = {
       toolbar: TOOLBAR_DESKTOP,
       disableNativeSpellChecker: false,
       // Disable ACF to not destroy HTML on mobile
-      allowedContent: true
+      allowedContent: true,
+      keystrokes: [
+        [CKEDITOR.CTRL + 83, 'saveRJS']
+      ],
     },
       MATCH_MEDIA = window.matchMedia("not screen and (min-width: 45em)");