Merge branch 'labels-small-buttons' into 'master'

Make edit/remove label buttons smaller

## Before

![Screenshot_2015-07-10_14.29.46](https://gitlab.com/gitlab-org/gitlab-ce/uploads/bc7a4886997ab194c1213f38f163b269/Screenshot_2015-07-10_14.29.46.png)

## After

![Screenshot_2015-07-10_14.31.09](https://gitlab.com/gitlab-org/gitlab-ce/uploads/ebb386a38e264ca7b50dc08891cb919c/Screenshot_2015-07-10_14.31.09.png)

See merge request !954

app/views/projects/labels/_label.html.haml

@@ -6,5 +6,5 @@
         = pluralize label.open_issues_count, 'open issue'
 
     - if can? current_user, :admin_label, @project
-      = link_to 'Edit', edit_namespace_project_label_path(@project.namespace, @project, label), class: 'btn'
-      = link_to 'Remove', namespace_project_label_path(@project.namespace, @project, label), class: 'btn btn-remove remove-row', method: :delete, remote: true, data: {confirm: "Remove this label? Are you sure?"}
+      = link_to 'Edit', edit_namespace_project_label_path(@project.namespace, @project, label), class: 'btn btn-sm'
+      = link_to 'Remove', namespace_project_label_path(@project.namespace, @project, label), class: 'btn btn-sm btn-remove remove-row', method: :delete, remote: true, data: {confirm: "Remove this label? Are you sure?"}