Update uses of Gitolite.config.foo settings

app/controllers/admin/users_controller.rb

app/controllers/omniauth_callbacks_controller.rb

app/helpers/application_helper.rb

app/mailers/notify.rb

app/models/namespace.rb

app/models/project.rb

app/roles/push_observer.rb

app/roles/repository.rb

app/views/admin/groups/show.html.haml

app/views/errors/gitolite.html.haml

app/views/profiles/account.html.haml

app/views/profiles/show.html.haml

app/views/shared/_clone_panel.html.haml

app/workers/post_receive.rb

config/initializers/3_grit_ext.rb

config/initializers/devise.rb

config/routes.rb

features/support/env.rb

lib/gitlab/auth.rb

lib/gitlab/backend/gitolite.rb