Merge branch 'ci-nav-commits-count' into 'master'

Use consistent styling for number of commits in CI nav sidebar

Before:

![Screen_Shot_2015-09-21_at_15.00.28](https://gitlab.com/gitlab-org/gitlab-ce/uploads/9005f606842936d415a3b67890b8af88/Screen_Shot_2015-09-21_at_15.00.28.png)


After:

![Screen_Shot_2015-09-21_at_15.00.43](https://gitlab.com/gitlab-org/gitlab-ce/uploads/08c897b65f82fab5f2c386a0d21c64af/Screen_Shot_2015-09-21_at_15.00.43.png)


See merge request !1375

app/views/layouts/ci/_nav_project.html.haml

@@ -9,7 +9,7 @@
       %i.fa.fa-list-alt
       %span
         Commits
-        %small.pull-right= @project.commits.count
+        %span.count= @project.commits.count
   = nav_link path: 'charts#show' do
     = link_to ci_project_charts_path(@project) do
       %i.fa.fa-bar-chart