Merge branch 'sign-out-to-sign-in' into 'master'

Redirect to sign in page after signing out.

Addresses internal issue https://dev.gitlab.org/gitlab/gitlabhq/issues/2125.

See merge request !541

CHANGELOG

@@ -4,6 +4,7 @@ v 7.11.0 (unreleased)
   - Fix clone URL field and X11 Primary selection (Dmitry Medvinsky)
   - Ignore invalid lines in .gitmodules
   - Fix "Cannot move project" error message from popping up after a successful transfer (Stan Hu)
+  - Redirect to sign in page after signing out.
   -
   - Add "Reply quoting selected text" shortcut key (`r`)
   - Fix bug causing `@whatever` inside an issue's first code block to be picked up as a user mention.

app/controllers/application_controller.rb

@@ -87,6 +87,10 @@ class ApplicationController < ActionController::Base
     end
   end
 
+  def after_sign_out_path_for(resource)
+    new_user_session_path
+  end
+
   def abilities
     Ability.abilities
   end