Monitor instance added to erp5 cluster
erp5cluster: Updated monitor stack
erp5: monitor-check-cache-hit script added to stack monitor
erp5: http monitor has no running cron - fix
pycurl: pycurl component added
erp5: monitor check cache hit uses pycurl instead of requests egg
erp5 cluster: http monitor: Add status history cgi
erp5 cluster: add parameters to check cache hit script + better output
erp5: check cache hit script improve output

prints only on stderr
erp5: check cache hit shows parameters
erp5: fix - check cache hit say HIT when STALE

When Apache Traffic Server say "[cSsSfU]" in "Via" header,
"cS" means the cache served a new content (~= cache miss)
erp5: add monitor to zope to access to the logs
erp5: check cache hit script enhanced to handle CSS and favicons

Previously, only images (from <img> tag) and scripts (from <script> tag) were handled
erp5: make apache handles /_user or /_anon urls
erp5: open access to mariadb logs

Add a monitor in port 3380
monitor: add some XXX comments
erp5: http monitor script get settings from zero knowledge config file
use 8Go for innodb_buffer_pool_size

(not to be merged)
erp5: add missing eggs for stack monitor
erp5: improve instance-zope to avoid publish informations twice