[serverctl] allow to sync multiple and all sources in source-sync command
Breaking change: by default source are not synced anymore if it is fresh
(regards to synchronization-interval). To get the previous behavior an option
--force is added.
Closes #13886467
Document: cubicweb-doc
Title: CubicWeb documentation
Author: Logilab
Abstract: Some base documentation for CubicWeb users and developpers
Section: Apps/Programming
Format: HTML
Index: /usr/share/doc/cubicweb-documentation/html/index.html
Files: /usr/share/doc/cubicweb-documentation/html/*