Merge branch 'impersonate' into 'master'

refactor login as to be impersonation with better login/logout

Modifies the existing "login as" feature to be called impersonation.

This also adds:

* Application keep track of who is impersonating the user so they can revert back to the original user without having to log out.
* Stores the user profile via `HTTP_REFERER` so you get redirected back to the person you have impersonated once you stop.

## Screenshots:

![](http://sindacio.us/i/2015-10-28_17-52-41.png)
![](http://sindacio.us/i/2015-10-28_17-53-08.png)

See merge request !1702

1 files changed, 0 insertions, 15 deletions

diff --git a/spec/controllers/admin/users_controller_spec.rb b/spec/controllers/admin/users_controller_spec.rb
index fcbe62cace8..8b7af4d3a0a 100644
--- a/spec/controllers/admin/users_controller_spec.rb
+++ b/spec/controllers/admin/users_controller_spec.rb
@@ -7,21 +7,6 @@ describe Admin::UsersController do
     sign_in(admin)
   end
 
-  describe 'POST login_as' do
-    let(:user) { create(:user) }
-
-    it 'logs admin as another user' do
-      expect(warden.authenticate(scope: :user)).not_to eq(user)
-      post :login_as, id: user.username
-      expect(warden.authenticate(scope: :user)).to eq(user)
-    end
-
-    it 'redirects user to homepage' do
-      post :login_as, id: user.username
-      expect(response).to redirect_to(root_path)
-    end
-  end
-
   describe 'DELETE #user with projects' do
     let(:user) { create(:user) }
     let(:project) { create(:project, namespace: user.namespace) }