powerdns: Introduce PowerDNS software release

powerdns: provide basic instanciation

powerdns: add monitoring, promise and reload

powerdns: add replication

power-dns: replication specific for powerdns

powerdns: fix parameter name

powerdns: provide input json schema for powerdns instance

powerdns: Publish current NS record

powerdns: introduce flexible configuration for countries/ geographical zones

powerdns: fix contry configuration list

powerdns: fix country map list

powerdns: add dynamic slave configuration

powerdns: remove recursor

powerdns: reduce log level
monitor: httpd conf template is now in a real file (and not declared inline anymore)

monitor: move httpd configuration template to jinja2
powerdns: improve monitor integration
monitor: Configurable and protected rewrite rule for local service
powerdns: monitor provide access to powerdns monitoring
monitor: fix httpd graceful
powerdns: freeze md5sum and version
Update slapos and erp5.util eggs
erp5testnode: update md5
erp5testnode: erp5.util version up 0.4.40
Add slave test Software Release.
erp5testnode: erp5.util version up
Slave test: remove slapos stack

In order to be lighter.
slave-test: add promise to self-test.
recipes to dump partition configuration or buildout section in json files
(cherry picked from commit a467c0f0541dfb10240935f8e69ae97fcc2597cb)
jsondump recipes: return paths and update files
(cherry picked from commit 362c2f6b1f018aea00e2e1b8a9dea5d647a49aa1)
jsondump recipe: use GenericBaseRecipe.
apache-frontend: fix trafficserver configuration to accept no-cache request
apache-frontend: replicate instance handle per frontend parameters

apache-frontend: update documentation for per frontend configuration
apache-frontend: ram and disk cache size are configurable