Show small notice at profile page about publicity

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

app/views/profiles/show.html.haml

@@ -86,5 +86,11 @@
               %hr
               = link_to 'Remove avatar', profile_avatar_path, data: { confirm: "Avatar will be removed. Are you sure?"}, method: :delete, class: "btn btn-remove btn-small remove-avatar"
 
+      - if @user.public_profile?
+        .bs-callout.bs-callout-info
+          %h4 Public profile
+          %p Your profile is publicly visible because you joined public project(s)
+
+
   .form-actions
     = f.submit 'Save changes', class: "btn btn-save"