Disable pre-release warning

Author: Kristan Kenney

web/templates/footer.html

@@ -1,4 +1,5 @@
   </div>
+  <!--
   <? if (($_SESSION['RELEASE_BRANCH'] !== "release") && ($_SESSION['RELEASE_BRANCH'] !== "beta")) { ?>
     <div class="footer-banner alpha" id="banner">
       <div>
@@ -15,8 +16,9 @@
       <div style="margin-top: 4px;"><a href="javascript:elementHideShow('banner');">Hide</a></div>
     </div>
   <?}?>
+  -->
   <? if ($_SESSION['user'] === 'admin') {?>
-    <? if ($_SESSION['updateAvailableNotify'] === "yes") { ?>
+    <? if ($_SESSION['UPDATE_AVAILABLE'] === "yes") { ?>
       <div class="footer-banner updates" id="banner">
         <div>
           <b>New updates are available!</b> To upgrade your server now, run <span style="font-family:'Courier New', Courier, monospace">apt update && apt upgrade</span> from a shell session.