SAAS-940: Provide usability hints to user

Fixed bug where sometimes the hint would not show up

airtime_mvc/application/layouts/scripts/layout.phtml

@@ -72,12 +72,9 @@ j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 
 <div class="wrapper" id="content">
     <?php
-    $hint = Application_Common_UsabilityHints::getUsabilityHint();
-    if ($hint != "") { ?>
-        <div class="usability_hint"><?php echo $hint; ?></div>
-    <?php
-    }
-    ?>
+    $hint = Application_Common_UsabilityHints::getUsabilityHint(); ?>
+
+    <div class="usability_hint" <?php if ($hint == "") { echo "style='display:none'"; } ?>><?php echo $hint; ?></div>
 
     <?php echo $this->layout()->content ?></div>