Link username to profile on Group Members page

When browsing GitLab, a user may want to view a particular user's
other contributions or profile information. This link helps make
that process seamless.

CHANGELOG

@@ -34,6 +34,7 @@ v 7.14.0 (unreleased)
   - Add support for CI skipped status
   - Fetch code from forks to refs/merge-requests/:id/head when merge request created
   - Remove satellites 
+  - Link username to profile on Group Members page (Tom Webster)
 
 v 7.13.2
   - Fix randomly failed spec

app/views/groups/group_members/_group_member.html.haml

@@ -6,7 +6,8 @@
   %span{class: ("list-item-name" if show_controls)}
     - if member.user
       = image_tag avatar_icon(user.email, 16), class: "avatar s16", alt: ''
-      %strong= user.name
+      %strong
+        = link_to user.name, user_path(user)
       %span.cgray= user.username
       - if user == current_user
         %span.label.label-success It's you