Merge branch 'backport_slack_application_changes' into 'master'

Backport Service changes from https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/2259

See merge request !12653

app/models/service.rb

@@ -51,6 +51,14 @@ class Service < ActiveRecord::Base
     active
   end
 
+  def show_active_box?
+    true
+  end
+
+  def editable?
+    true
+  end
+
   def template?
     template
   end

app/views/projects/services/_form.html.haml

@@ -11,6 +11,7 @@
   .col-lg-9
     = form_for(@service, as: :service, url: project_service_path(@project, @service.to_param), method: :put, html: { class: 'gl-show-field-errors form-horizontal js-integration-settings-form', data: { 'can-test' => @service.can_test?, 'test-url' => test_project_service_path(@project, @service) } }) do |form|
       = render 'shared/service_settings', form: form, subject: @service
+      - if @service.editable?
         .footer-block.row-content-block
           %button.btn.btn-save{ type: 'submit' }
             = icon('spinner spin', class: 'hidden js-btn-spinner')

app/views/shared/_service_settings.html.haml

@@ -7,6 +7,7 @@
     = markdown @service.help
 
 .service-settings
+  - if @service.show_active_box?
     .form-group
       = form.label :active, "Active", class: "control-label"
       .col-sm-10