Small css fixes

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/assets/stylesheets/sections/header.scss

@@ -19,7 +19,7 @@ header {
         line-height: 32px;
         padding: 6px 10px;
-        &:hover {
+        &:hover, &:focus, &:active {
           background: none;
         }
       }
@@ -192,7 +192,8 @@ header {
           color: #AAA;
           text-shadow: 0 1px 0 #444;
-          &:hover {
+          &:hover, &:focus, &:active {
+            background: none;
             color: #FFF;
           }
         }

app/views/projects/commits/_commit.html.haml

@@ -5,7 +5,7 @@
     %span.str-truncated
       = link_to_gfm commit.title, project_commit_path(project, commit.id), class: "commit-row-message"
       - if commit.description?
-        %a.label-default.text-expander.js-toggle-button ...
+        %a.text-expander.js-toggle-button ...
     = link_to "Browse Code »", project_tree_path(project, commit), class: "pull-right"
     .notes_count