- Fix logo to display "Quay.io" in the proper font

- Fix the CSS to properly show the menu on smaller screens and to scale down the logo as necessary
- Fix the CSS to have the menu icon be properly sized

static/directives/header-bar.html

@@ -1,7 +1,7 @@
 <!-- Quay -->
 <div class="navbar-header">
   <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse" style="padding: 0px; padding-left: 4px; padding-right: 4px;">
-    <span style="font-size: 24px">&equiv;</span>
+    &equiv;
   </button>
   <a class="navbar-brand" href="/" target="{{ appLinkTarget() }}">
     <img src="/static/img/quay-logo-inverted.png">