update maintenance page

public/maintenance.html

@@ -31,8 +31,7 @@
       <div class="jumbotron">
         <div class="container text-center">
           <h1>
-            <span class="glyphicon glyphicon-tree-conifer"></span> <span class="glyphicon glyphicon-tent"></span><span class="glyphicon glyphicon-tree-deciduous"></span> <span class="glyphicon glyphicon-scissors"></span> <span class="glyphicon glyphicon-wrench"></span> <span
+            <span class="glyphicon glyphicon-scissors"></span> <span class="glyphicon glyphicon-wrench"></span> <span class="glyphicon glyphicon-fire"></span>
-              class="glyphicon glyphicon-fire"></span>
           </h1>
           <div class="col-md-6">
             <h2>
@@ -40,7 +39,7 @@
             </h2>
             <p>This may be due to...</p>
             <p>
-              ...cats eating the fiber.<br> ...archangels closing the gates of heaven. <br>...somebody's stolen the power chord and now the battery is empty. <br>...DHCP decided to give me another ip address.
+              ...archangels closing the gates of heaven. <br>...somebody's stolen the power chord and now the battery is empty. <br>...DHCP decided to give me another ip address.
             </p>
           </div>
           <div class="col-md-6">
@@ -52,7 +51,7 @@
     <div class="row">
       <div class="col-md-12">
         <div class="text-center footer">
-          <a href="mailto:erzengel@lists.ccc.de"><span class="glyphicon glyphicon-envelope"></span> Contact</a> · <a href="https://github.com/engelsystem/engelsystem/issues">Bugs / Features</a> · <a href="https://github.com/engelsystem/engelsystem/">Development Platform</a>
+          <a href="https://github.com/engelsystem/engelsystem/issues">Bugs / Features</a> · <a href="https://github.com/engelsystem/engelsystem/">Development Platform</a>
         </div>
       </div>
     </div>