All ERP5 profile is now in a single place.
Moreover, use slapos.cfg stack.

Fewer parameters, one more dependency.

This reverts commit a3cf70c9.

This version forces h.r.download to clean its own mess in /tmp.

Won't create /opt/slapgrid/.npm anymore

Conflicts:
	component/apache-php/buildout.cfg
	component/git/buildout.cfg
	component/mariadb/buildout.cfg
	slapos/recipe/request.py
	software/drupal/instance.cfg
	stack/lamp/buildout.cfg
	stack/nbd.cfg

Also, stop referencing reference implicitly pulled parts.

ERP5 related test locations can be calculated by eggs:extra-paths, instead of globbing from all parts.