Add lighter sitemap logic to project bundle.

Conflicts:
	composer.lock
	src/S40/CmsBundle/Sitemap/SitemapProvider.php
	src/S40/WheelersBundle/Resources/config/services.xml
	src/S40/WheelersBundle/Resources/views/Frontend/sitemap.html.twig
Generalise route name for category sitemap.
Make product form type override-able
fix merge
attribute sort order in admin
Merge branch 'master' of github.com:Studio-40/plato