In order not to conflict with a future integration of NEO in ERP5:
- the input schema has a new parameter for external storages.
- zodb-software-type & zodb is used only for internal storages
  and only ZEO is supported.

NEO logging is also enabled for clients.

Contrary to ERP5, there's no mysql-update service:
- this simplifies the SR
- after reading the MySQL documentation, the automatic use of mysql_upgrade
  is quite frightening:
  « You should always back up your current MySQL installation before performing
  an upgrade. »
  « After running mysql_upgrade, stop the server and restart it so that any
  changes made to the system tables take effect. » (which is currently not done
  by the recipe)
- the future of NEO is an embedded DB like libmysqld

New 'slapos-kill' from slapos.toolbox is used instead of 'killpidfromfile'
This is required for NEO which does not write any pid file.

The inline recipe for ERP5 has been improved and converted into recipe,
which is reused for NEO.

Templates are instanciated only if they're used, so no need anymore to
wrap them with:

  {% if slap_software_type == software_type -%}
  ...
  {% endif %}

- Use latest slapos.toolbox (0.41.0)
- stack/erp5/buildout.cfg add script is-local-tcp-port-opened
- Change instance-mariadb promise to use is-local-tcp-port-opened

The monitor runs promises every 5 minutes.
The previous mariadb promise check for listening tcp port by openning
a socket and closing it, causing mariadb to block the host after a
defined amount of time.

The new script `is-local-tcp-port-opened` checks for opened tcp port
on current machine by reading /proc/net/tcp{,6}. No socket is opened.
Maria should not block hosts anymore.

Conflicts:
	stack/erp5/buildout.cfg
	stack/erp5/instance-erp5-cluster.cfg.in
	stack/erp5/instance-erp5-single.cfg.in
	stack/monitor/buildout.cfg

also add a temporary patch to respect more tokens in natural language mode.

Move dcron test in dedicated directory/file.
Also move slapos/recipe/test to slapos/test.
Currently : only dcron test.

Conflicts:
	software/slaprunner/schema.json
	software/slaprunner/software.cfg.json

also use the explicit version of nginx-dav-ext-module.
also remove too old nginx-unstable.

stop using quite old setuptools in slapos itself, because many eggs already drop python 2.4/2.5 support.