Adds config property that disables hiding of toolbar.

index.html

     <script src="libs/popover.js?v=1"></script><!-- bootstrap tooltip lib -->
     <script src="libs/toastr.js?v=1"></script><!-- notifications lib -->
     <script src="interface_config.js?v=5"></script>
-    <script src="libs/app.bundle.js?v=68"></script>
+    <script src="libs/app.bundle.js?v=69"></script>
     <script src="analytics.js?v=1"></script><!-- google analytics plugin -->
     <link rel="stylesheet" href="css/font.css?v=7"/>
     <link rel="stylesheet" href="css/toastr.css?v=1">

modules/UI/toolbars/ToolbarToggler.js

  * Hides the toolbar.
  */
 function hideToolbar() {
+    if(config.alwaysVisibleToolbar)
+        return;
+
     var header = $("#header"),
         bottomToolbar = $("#bottomToolbar");
     var isToolbarHover = false;