It's been released a long time ago so is probably not very useful
at this point anymore. Besides, some more improvements are coming
in 3.9.

Merge branch 'kibi/bugfix/15791-update-test-suite-for-thunderbird-60' into testing (Fix-committed: #15791).

Let's work around timing glitches by waiting a full second between
sending two shortcuts, so that the menu has a chance to pop up.

That's needed for our USB image project.

Currently we use only 13G out of the 30G our mirrors are supposed to have
so we can afford it.

I.e. prepare everything that shall be merged into master (when publishing the
release) in a dedicated branch. The only difference is that for RCs,
that branch is forked off master, while for final releases, it's forked from the
release tag.

The platform part is not spoofed anymore:
https://trac.torproject.org/projects/tor/ticket/26146

Now we'll publish all upgrades on the test channel and will use this
for our QA. Only once our QA has passed, $WEBSITE_RELEASE_BRANCH
will be merged, which will advertise the upgrades on the stable channel (for
actual releases) and alpha releases (for anything else) as usual.

Sometimes an old instance of the Greeter is displayed, which starts this image
lookup and its timeout, but that Greeter lacks the expected
TailsGreeterPersistencePassphrase.png, which appears only a while later
after the Greeter we really want has started.

See https://labs.riseup.net/code/issues/12461#note-16 for details.

Works for me.