Refactor project stats & last_commit CSS; left align main nav items

app/assets/stylesheets/framework/nav.scss

@@ -287,7 +287,6 @@
   background: $gray-light;
   border-bottom: 1px solid $border-color;
   transition: padding $sidebar-transition-duration;
-  text-align: center;
 
   .container-fluid {
     position: relative;

app/assets/stylesheets/pages/projects.scss

@@ -645,30 +645,24 @@ pre.light-well {
   }
 }
 
-.project-last-commit {
-  @media (min-width: $screen-sm-min) {
-    margin-top: $gl-padding;
+.container-fluid.project-stats-container {
+  @media (max-width: $screen-xs-max) {
+    padding: 12px 0;
   }
+}
 
-  &.container-fluid {
-    padding-top: 12px;
-    padding-bottom: 12px;
+.project-last-commit {
   background-color: $gray-light;
+  padding: 12px $gl-padding;
   border: 1px solid $border-color;
-    border-right-width: 0;
-    border-left-width: 0;
 
   @media (min-width: $screen-sm-min) {
-      border-right-width: 1px;
-      border-left-width: 1px;
-    }
+    margin-top: $gl-padding;
   }
 
-  &.container-limited {
-    @media (min-width: 1281px) {
+  @media (min-width: $screen-sm-min) {
     border-radius: $border-radius-base;
   }
-  }
 
   .ci-status {
     margin-right: $gl-padding;

app/views/layouts/_page.html.haml

 .page-with-sidebar{ class: page_gutter_class }
   - if defined?(nav) && nav
     .layout-nav
-      .container-fluid
+      %div{ class: container_class }
         = render "layouts/nav/#{nav}"
   .content-wrapper{ class: "#{layout_nav_class}" }
     = yield :sub_nav

app/views/projects/show.html.haml

@@ -13,7 +13,8 @@
 = render "home_panel"
 
 - if current_user && can?(current_user, :download_code, @project)
-  %nav.project-stats{ class: container_class }
+  .project-stats-container{ class: container_class }
+    %nav.project-stats
       %ul.nav
         %li
           = link_to project_files_path(@project) do
@@ -74,7 +75,7 @@
                 Set up auto deploy
 
     - if @repository.commit
-    .project-last-commit{ class: container_class }
+      .project-last-commit
         = render 'projects/last_commit', commit: @repository.commit, ref: current_ref, project: @project
 
 %div{ class: container_class }