Fixes #4321 - Add bundle to restart services at some conditions
Refs #4321 - Change service_restart to wrap service_restart_if and add tests
Refs #4321 - Add a more precise description
Fixes #4409 - Add ncf possibility to rudderify from alternative path
Refs #4409 - Remove useless if statements
Fixes #4424 - Permit to copy file from remote host
Refs #4424 - Add forgotten class 'is_file'
Fixes unicode matching regexp
Improve logging: use constants for ERROR/INFO/DEBUG prefixes and add TRACE level, also ensure _logger_default doesn't mis-report kept when repaied
Put reference menu on left of the page
Add download page
Improve download page
Improve README (and therefore home page) with an example and links at the end
Add about page with slides from FOSDEM talk
Improve about page with slides from FOSDEM talk
Add acknowledgments to about page
Highlight current page in navbar
Fix typo in README
Clarify README
Add FAQ page