use default header for user front-ends and inverted header for

administration front-end

htroot/env/bootstrap-base.css

@@ -70,9 +70,6 @@ body {
   margin: 0px;
   font-size: 14px;
 }
-.navbar {
-	background-color: #404040;
-}
 .navbar-header a:link, .navbar-collapse a:link {
   text-decoration:none;
 }

htroot/env/templates/header.template

@@ -9,7 +9,7 @@
         <span class="icon-bar"></span>
       </button>
       <a class="forceNoExternalIcon navbar-brand" id="navbar-brand" href="/" style="position:absolute;top:-6px;display:inline;white-space:nowrap;">
-        <img id="greeting-icon" class="yacylogo" src="/env/grafics/yacy.png" style="height:auto; width:auto; max-width:200px; max-height:32px;vertical-align:middle">&nbsp;<span id="greeting"></span>
+        <img id="greeting-icon" class="yacylogo" src="/env/grafics/yacy.png" style="height:auto; width:auto; max-width:200px; max-height:32px;vertical-align:middle">&nbsp;Administration
       </a>
     </div>
     <div class="navbar-collapse collapse">

htroot/env/templates/simpleheader.template

@@ -1,5 +1,5 @@
 <!-- top navigation -->
-<div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
+<div class="navbar navbar-default navbar-fixed-top" role="navigation">
   <div class="container-fluid">
     <div class="navbar-header">
       <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">