Fix related items viewlet listing dexterity related folder's descendants.
Fix test that started to fail due to moving the search control panel to z3c.form.
Switch enable_sitemap setting from site_properties to p.a.registry.

Conflicts:
	CHANGES.rst
	plone/app/layout/sitemap/sitemap.py
	setup.py
Switch webstats_js setting from site_properties to p.a.registry.

Conflicts:
	plone/app/layout/analytics/tests/analytics.txt
	plone/app/layout/analytics/view.py
	plone/app/layout/globals/portal.py
	plone/app/layout/globals/tests/test_portal.py
	plone/app/layout/sitemap/tests/test_sitemap.py
Switch site_title setting from root property to p.a.registry.
Make sure we return the site title from the registry on the portal root.
Change toolbar tiny logo to an svg vector version with ancient browsers fallback.
Update of pathbar, navigation and minor changes in other pt
history button and context sign fix
history buttons and signs again