GroupLinks: Empty Scaffold, routes + sample page

app/controllers/projects/group_links_controller.rb

+class Projects::GroupLinksController < Projects::ApplicationController
+  layout 'project_settings'
+
+  def index
+    # TODO: Implement
+  end
+
+  def create
+    # TODO: Implement
+  end
+
+  def destroy
+    # TODO: Implement
+  end
+end
+

app/views/projects/_settings_nav.html.haml

@@ -19,3 +19,7 @@
     = link_to project_services_path(@project) do
       %span
       Services
+  = nav_link(controller: :group_links) do
+    = link_to project_group_links_path(@project) do
+      %span
+      Groups

app/views/projects/group_links/index.html.haml

+%h3.page_title Share project with groups
+%br
+%p
+  Project can be stored in one group at once
+  %br
+  However you can share project with other groups here.
+
+.row
+  .span5.enabled-groups
+    %h5
+      Already shared with:
+    %ul.bordered-list
+      - Group.first(2).each do |group|
+        %li
+          %h5
+            .pull-left
+              %a.btn.btn-small
+                %i.icon-remove
+               
+            = link_to group do
+              %i.icon-folder-open
+              = group.name
+
+  .span5.available-groups
+    %h5
+      Can be shared with:
+    %ul.bordered-list
+      - Group.last(5).each do |group|
+        %li
+          %h5
+            .pull-right
+              %a.btn.btn-small Share
+            %i.icon-folder-close
+            = group.name
+

config/routes.rb

@@ -284,6 +284,8 @@ Gitlab::Application.routes.draw do
         end
       end
 
+      resources :group_links, only: [:index, :create, :destroy]
+
       resources :notes, only: [:index, :create, :destroy, :update] do
         member do
           delete :delete_attachment