Small UI improvements

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

app/assets/stylesheets/generic/selects.scss

@@ -10,6 +10,7 @@
 
     .select2-arrow {
       background: #FFF;
+      border-left: 1px solid #DDD;
     }
   }
 }

app/assets/stylesheets/sections/header.scss

@@ -137,6 +137,7 @@ header {
   .profile-pic {
     position: relative;
     top: -1px;
+    padding-right: 0px !important;
     img {
       width: 26px;
       height: 26px;

app/views/projects/_home_panel.html.haml

@@ -8,7 +8,7 @@
         = @project.name_with_namespace
 
     .col-sm-6
-      - unless empty_repo
+      - if current_user && !empty_repo
         .project-home-dropdown
           = render "dropdown"
       = render "shared/clone_panel"