Changed the comment horizontal divider + Fixed the alignment of navigation buttons

sass/discussion/_question-view.scss

@@ -285,9 +285,7 @@ div.question-header {
       }
 
       div.controls {
-        // padding: 15px 0;
-        // background: #efefef ;
-        border-top: 1px dashed #ddd;
+        border-top: 1px solid #efefef;
         text-align: right;
         a {
           display: inline-block;

sass/discussion/_questions.scss

@@ -9,7 +9,7 @@ div.question-list-header {
     margin: 0;
 
     > a.light-button {
-    
+      float: right;
     }
   }