GitLab

I'm ignoring:

 - Links to APT snapshots that may be used as APT sources
   (HTTPS breaks caching proxies)

 - Old blog posts

 - Blueprints

https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/Themes#Documentation
says that "Lightweight themes have been deprecated", which explains why our old,
custom lightweight theme is ignored.

The only options to fix this are:

 - Create our own theme, get it automatically signed by Mozilla on AMO, download
   the resulting XPI, and somehow make it available at build time.

 - Use an existing theme with a GPL-3+ compliant license.

I've chosen the latter option: this theme is almost identical to the one we
had before.

The XPI is 7.7K so I don't think it's worth devising a more complicated
solution than just adding it to Git.

Currently translated at 17.7% (11 of 62 strings)

Translation: Tails/wiki/src/news/version_3.14.1.*.po
Translate-URL: http://translate.tails.boum.org/projects/tails/wikisrcnewsversion_3141po/pt/

Currently translated at 39.0% (16 of 41 strings)

Translation: Tails/wiki/src/news/version_3.11.*.po
Translate-URL: http://translate.tails.boum.org/projects/tails/wikisrcnewsversion_311po/it/

This reverts commit 17f3cacb.

I don't understand what getting the source code from Debian directly
brings on top of our snapshots. And we also take packages from
torproject.org.

  - The index of http://tagged.snapshots.deb.tails.boum.org/ is pretty
    straightforward once you know that you should look for a Tails
    version number. So I'm removing the example and pointing directly to
    the index.
  - I don't understand what /contribute/APT_repository/tagged_snapshots
    brings to people looking for the source code of some Tails version.

E.g. sometimes we just upload a trivial backport. This is irrelevant in
this section anyway: regardless of whether there's a Git repository, the
source package will be in the tagged APT snapshot so we're good.

We don't need to promise that anymore, now that we make the source code
available online.

refs: #6311

Document where to find the source code of packages shipped in a given version of Tails, using our tagged APT snapshots.

refs: #6311