Fixing requests after namespaces. Fixed admin bug with access to project

app/controllers/admin/projects_controller.rb

app/helpers/application_helper.rb

app/observers/user_observer.rb

lib/api/projects.rb

spec/controllers/commits_controller_spec.rb

spec/factories.rb

spec/mailers/notify_spec.rb

spec/observers/user_observer_spec.rb

spec/observers/users_project_observer_spec.rb

spec/requests/admin/admin_hooks_spec.rb

spec/requests/admin/admin_projects_spec.rb

spec/requests/admin/admin_users_spec.rb

spec/requests/api/milestones_spec.rb

spec/requests/api/projects_spec.rb