kumo: Fix FTBFS with GCC 4.9.

https://gcc.gnu.org/gcc-4.9/porting_to.html
apache-frontend: fix double publication bug
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