Add help text in all the apps + french translation

www/slide/inner.js

@@ -432,11 +432,9 @@ define([
 
     var mkHelpMenu = function (framework) {
         var $codeMirrorContainer = $('#cp-app-slide-editor-container');
-        var helpMenu = framework._.sfCommon.createHelpMenu();
+        var helpMenu = framework._.sfCommon.createHelpMenu(['text', 'slide']);
         $codeMirrorContainer.prepend(helpMenu.menu);
 
-        $(helpMenu.text).html(DiffMd.render(Messages.slideInitialState));
-
         framework._.toolbar.$drawer.append(helpMenu.button);
     };