Merge branch 'fix-ci-permissions' into 'master'

Fix CI permissions

![Screen_Shot_2015-09-21_at_20.23.16](https://gitlab.com/gitlab-org/gitlab-ce/uploads/6f40699507d0dce148d0054a093f0d63/Screen_Shot_2015-09-21_at_20.23.16.png)

This fixes two problems:
- Allow developers to retry builds
- Hide advanced project options from CI page for non-admin users



See merge request !1379

CHANGELOG

@@ -44,6 +44,8 @@ v 8.0.0 (unreleased)
   - Retrieving oauth token with LDAP credentials
   - Load Application settings from running database unless env var USE_DB=false
   - Added Drone CI integration (Kirill Zaitsev)
+  - Allow developers to retry builds
+  - Hide advanced project options for non-admin users
   - Fail builds if no .gitlab-ci.yml is found
   - Refactored service API and added automatically service docs generator (Kirill Zaitsev)
   - Added web_url key project hook_attrs (Kirill Zaitsev)

app/controllers/ci/application_controller.rb

@@ -38,7 +38,7 @@ module Ci
     end
 
     def authorize_manage_builds!
-      unless can?(current_user, :admin_project, gl_project)
+      unless can?(current_user, :manage_builds, gl_project)
         return page_404
       end
     end

app/views/layouts/ci/_nav_project.html.haml

@@ -10,6 +10,7 @@
       %span
         Commits
         %span.count= @project.commits.count
+  - if can?(current_user, :admin_project, gl_project)
     = nav_link path: 'charts#show' do
       = link_to ci_project_charts_path(@project) do
         = icon('bar-chart fw')