Expose a user's .current_sign_in_ip in the admin panel

app/views/admins/_user_entry.haml

@@ -27,6 +27,8 @@
           %dd= user.person.diaspora_handle
           %dt= t(".last_seen")
           %dd= user.last_seen || t(".unknown")
+          %dt= t(".current_sign_in_ip")
+          %dd= user.current_sign_in_ip || t(".unknown")
           - if user.invited_by.present?
             %dt= t(".invite_token")
             %dd= invite_code_url(user.invited_by.invitation_code)

config/locales/diaspora/en.yml

@@ -146,6 +146,7 @@ en:
       email: "Email"
       diaspora_handle: "diaspora* ID"
       last_seen: "Last seen"
+      current_sign_in_ip: "IP address at current sign in"
       account_closed: "Account closed"
       nsfw: "#nsfw"
       admin: "Admin"