Merge pull request #2226 from jouve/username

add username to team_member page

diff --cc app/views/team_members/show.html.haml
index af9a6e6,9120df9..4008e8b
--- 1/app/views/team_members/show.html.haml
--- 2/app/views/team_members/show.html.haml
+++ b/app/views/team_members/show.html.haml
@@@ -6,10 -6,9 +6,9 @@@
      = link_to 'Remove from team', project_team_member_path(project_id: @project, id: @team_member.id), confirm: 'Are you sure?', method: :delete, class: "right btn danger"
    .profile_avatar_holder
      = image_tag gravatar_icon(user.email, 60), class: "borders"
 -  %h3
 +  %h3.page_title
      = user.name
-     %small
-       = user.email
+     %small (@#{user.username})
  
    %hr
    .back_link