Update po_translatable_pages for Tails 4.0
On each release n of Tails 3.0, 4.0, etc.
po_translatable_pages should be updated to disable translations of
news/version_* for release n-2.
Also create a ticket for Tails 5.0.
- Assignee changed from intrigeri to sajolida
- Target version changed from Tails_4.0 to Tails_3.15
- QA Check set to Ready for QA
We released 3.0 two years ago so I think we can go ahead. Please review and if happy, reassign to me so I merge this into master in lock-step with the Puppet side of things.