Merge branch 'remove-ci-help' into 'master'

Remove CI help

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/2556

See merge request !1325

app/controllers/ci/helps_controller.rb

-module Ci
-  class HelpsController < Ci::ApplicationController
-    skip_filter :check_config
-
-    def show
-    end
-
-    def oauth2
-      if valid_config?
-        redirect_to ci_root_path
-      else
-        render layout: 'ci/empty'
-      end
-    end
-  end
-end

app/views/ci/helps/oauth2.html.haml

-.welcome-block
-  %h1
-    Welcome to GitLab CI
-  %p
-    GitLab CI integrates with your GitLab installation and runs tests for your projects.
-
-  %h3 You need only 2 steps to set it up
-
-  %ol
-    %li
-      In the GitLab admin area under OAuth applications create a new entry. The redirect url should be
-      %code= callback_ci_user_sessions_url
-    %li
-      Update the GitLab CI config with the application id and the application secret from GitLab.
-    %li
-      Restart your GitLab CI instance
-    %li
-      Refresh this page when GitLab CI has started again
-
-

app/views/ci/helps/show.html.haml

-.jumbotron
-  %h2
-    GitLab CI
-    %span= GitlabCi::VERSION
-    %small= GitlabCi::REVISION
-  %p
-    GitLab CI integrates with your GitLab installation and run tests for your projects.
-    %br
-    Login with your GitLab account, add a project with one click and enjoy running your tests.
-    %br
-    Read more about GitLab CI at #{link_to "about.gitlab.com/gitlab-ci", "https://about.gitlab.com/gitlab-ci/", target: "_blank"}.
-
-
-.bs-callout.bs-callout-success
-  %h4
-    = link_to 'https://gitlab.com/gitlab-org/gitlab-ci/blob/master/doc/api' do
-      %i.fa.fa-cogs
-      API
-  %p Explore how you can access GitLab CI via the API.
-
-.bs-callout.bs-callout-info
-  %h4
-    = link_to 'https://gitlab.com/gitlab-org/gitlab-ci/tree/master/doc/examples' do
-      %i.fa.fa-info-sign
-      Build script examples
-  %p This includes the build script we use to test GitLab CE.
-
-.bs-callout.bs-callout-danger
-  %h4
-    = link_to 'https://gitlab.com/gitlab-org/gitlab-ci/issues' do
-      %i.fa.fa-bug
-      Issue tracker
-  %p Reports about recent bugs and problems..
-
-.bs-callout.bs-callout-warning
-  %h4
-    = link_to 'http://feedback.gitlab.com/forums/176466-general/category/64310-gitlab-ci' do
-      %i.fa.fa-thumbs-up
-      Feedback forum
-  %p Suggest improvements or new features for GitLab CI.

config/routes.rb

@@ -9,10 +9,6 @@ Gitlab::Application.routes.draw do
 
     resource :lint, only: [:show, :create]
 
-    resource :help do
-      get :oauth2
-    end
-
     resources :projects do
       collection do
         post :add