Enable AFTv5 on frwiki

* Add comments to AFTv5 config vars
* Enable AFTv5 on frwiki
	* Enable on NS_MAIN & NS_HELP
	* Lottery: 100% on NS_HELP, 0% on NS_MAIN
	* Whitelist category: "Wikipédia:Outil_de_retour_des_lecteurs" (to whitelistspecific pages on NS_MAIN)
	* Blacklist category: "Wikipédia:Outil_de_retour_des_lecteurs/exclus" to blacklist specific pages on NS_HELP)
	* Oversight email address: privacy-wp-fr-at-wikimedia.org
	* "Learn to edit" links to //fr.wikipedia.org/wiki/Aide:Article
	* Abuse Filter is enabled
	* CTA buckets 50/50 Enticement to edit/Sign up or login
	* Default permission levels
	* No article page link
* Update dewiki auto-archive TTL (even though auto-archive is not yet enabled)
* Disable AFTv5's watchlist page on enwiki & frwiki
* afttest permissions should include monitor

Change-Id: I8a583bb108315417413f7962166cb6e2b0cf6c41
Merge "Enable AFTv5 on frwiki"