GitLab

The link is now constructed in code (instead of coming from aboutTor.dtd)
and it is:
  https://community.torproject.org/LOCALE
where LOCALE is the current browser locale.

Removing the donation banner.

Our use of entities that contained trailing spaces was a bad idea:  they
got lost during the translation process.  Instead, we now use a template
that contains a snippet of HTML, with the search engine URLs as separate
property strings.

We did our best to preserve the existing translated strings, converting
them to the new scheme and adding the missing spaces.

Instead of a remote check, we now check browser proxy settings against the
values specified by the tor control port.

If the control port is unavailable or broken, we send background request to
check.torproject.org and update the about:tor homepage and torbutton icon
retroactively if that fails.