Add topbar, move account info to top-right corner

app/styles/app.scss

@@ -2,6 +2,7 @@
   margin: 0;
   padding: 0;
   box-sizing: border-box;
+  font-size: 14px;
 }
 
 *:hover, *:active, *:focus {
@@ -24,7 +25,6 @@ body {
   background-repeat: none;
   background-attachment: fixed;
   font-family: $font-family-sans;
-  font-size: 14px;
   font-weight: 300;
   color: #fff;
 }
@@ -100,6 +100,7 @@ button, input[type=submit] {
   }
 }
 
+@import "components/topbar";
 @import "components/loading-spinner";
 @import "components/contributor-list";
 @import "components/add-contributor";