Merge branch 'erp5-component' into erp5
squid-component: update to latest stable (3.4.4)
apache-frontend: squid uses disk cache
apache-frontend: check configuration file before reloading apache
apache-frontend: add configuration promises and use slapos dash for scripts
zero-knowledge: rename recipe

Conflicts:
	stack/monitor/buildout.cfg
monitor: fix parts in buildout.cfg, remove nginx
apache-frontend: add monitoring stack
apache-frontend: update default SSL configuration
apache-frontend: update default SSL configuration of default virtual host
apache-runner: add log access and publish monitoring url
monitor: add neutral default page and graceful

monitor: update monitor information to use setting section to change password (stash with welcome page)
apache: extend part ton include monitor graceful
monitor: clean directory and parameter sections

monitor: continue cleaning section in monitor.cfg.in

monitor: continue fix and optimising monitor.cfg

monitor: Fix make RSS (introduced by clean sections)
monitor: improve monitor script reliability (fix?)
monitor: add possibility to refresh status
monitor: RSS inform of status change and store all data in a sqlite database

monitor: status value are stored in sqlite3 database

monitor: now store all ran scripts
monitor: add access to instance log directory if it exists
apache-frontend: update cookbook version
apache-frontend: update parts for monitoring