[*change] Changes of list config parameters on archiving.
* New parameter "process_archive" controls archiving. The default is "off": To enable archiving, it must be set to "on" explicitly. OTOH even if archiving is disabled by setting it "off", past archives will be kept and accessible according to access settings. * Renamed parameters. web_archive.access to archive.web_access; archive.access to archive.mail_access; web_archive.quota to archive.quota; web_archive,max_month to archive.max_month. Though config files of exisiting lists will be updated during upgrading process, listmasters are highly recommended to check new configuration. Customized scenarios, list creation templeates and edit_list.conf will never be upgraded automatically. They should be modified manually, if neccessary. git-svn-id: https://subversion.renater.fr/sympa/branches/sympa-6.2-branch@11789 05aa8bb8-cd2b-0410-b1d7-8918dfa770ce